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Next NASA Vehicles To Resemble Shuttles

ausoleil writes "Spaceref.com has an internal NASA memo outlining potential plans for the next generation of launch vehicles. They will closely resemble the current Shuttle and use some of the same hardware. Of course, they plan to leave the exploding parts out of their next versions. From the article: 'NASA has decided to build two new launch systems - both of which will draw upon existing Space Shuttle hardware. One vehicle will be a cargo-only heavy lifter, the other will be used to launch the Crew Exploration Vehicle.'"

205 comments

  1. Nice to see an Ares stack finally getting props by rossifer · · Score: 5, Informative

    This memo could be a photocopy of something circulating thirty years ago. Sounds like they're finally going to take advantage of the modular parts of the shuttle the way they talked about when the shuttle stack design was being originally being funded twenty-five to thirty years ago. One nice change is that the rumor mill believes the heavy lift stack bears a striking resemblance to Robert Zubrin's Ares stack (a.k.a. Shuttle-Z).

    The "Shuttle-C" cargo stack (and variations) were originally publically discussed in the early '80s as reasons why the shuttle was worth all we were spending (you don't just get the shuttle, you also get a "normal" heavy-lift launcher). Those variants, however, have had problems that could only be resolved by massive cultural change at the NASA level. One of the biggest issues was payload capacity of the side-slung configuration. Since then variations including the Ares stack and the more recent Shuttle-B have appeared and pretty much gone nowhere.

    I suspect that the United Space Alliance's (USA's) "risk averse" culture will actively hinder and ultimately frustrate all of these plans. If you've ever worked for a government contractor, you'll understand the culture I'm talking about. They (Boeing and Lockheed-Martin, the companies in the USA partnership) don't have to compete in markets, and are positively allergic to any hint that they may have to compete with other companies for revenue. If NASA's hoping for bargains, they won't find them when dealing with USA.

    Regards,
    Ross

    1. Re:Nice to see an Ares stack finally getting props by Seumas · · Score: 5, Insightful

      First cynical point: They'll be using the existing shell design, because they're going to use existing everything. We pay billions, they claim to have redesigned everything, they redesign nothing. They make a few minor cosmetic changes and we all live under the assertion that we live in a brave new NASA world of progress once again while some beaurocrat reappropriates the money for his own black-ops.

      Second cynical point: If our one big goal is to go BACK to the MOON within the next decade (or was it twenty years?), why do we need such new complex spacecraft? We did it in April of 1969 with the computing power of today's calculator, but we need a complete overhaul to manage to do something we already did almsot four decades ago?

      I'm seeing us spending a lot of money here. Doing a lot of grunt work here. Yet, all we're achieving is the same thing we've already achieved. How disapointing.

    2. Re:Nice to see an Ares stack finally getting props by Alex+P+Keaton+in+da · · Score: 1

      Tell me if you like the fit of my tinfoil hat- but here goes:
      Does anyone really belive that the US doesnt have a shuttle like craft? I am sure the military has some type of way to get up and work on sattelites without the shuttle. Think about how important sattelites and space in general are to our military... It woulod take hundreds of pages to list all the military functions that rely on satellites- from the most basic gps to sunmarine nav (yes I know they can navigate other ways). The US military spends something like 3billion a day- do we reallyb think they don't have a shuttle type vehicle of their own?
      It just makes sense- the military is all about controlling operating coinditions and redundant systems....
      Just my two tinfoil cents.

      --
      And All I Ask is a Tall Ship And a Star to Steer Her By
    3. Re:Nice to see an Ares stack finally getting props by brwski · · Score: 2, Insightful

      It's not merely disappointing --- it's disgusting. The shuttle was a bad idea from the start, and that the same mistakes will be recapitulated is awful.

      Is the real reason we backed away from manned exploration in the 70's because the "right" people weren't making a profit off of it? It could well be that, until there is a consistent and projectable profit to be had from the manned exporation of space, we will be stuck back here on Earth. I memorized every announced space launch, manned or otherwise, when I was a kid. I looked forward to life in space, or at least something better from the space program than satellite TV and phone service. A terribly sad situation all around.

      --

      brwski
      "Because without beer, things do not seem to go as well''

    4. Re:Nice to see an Ares stack finally getting props by ceejayoz · · Score: 2, Insightful

      If the US has a problem with a GPS satellite, they launch a replacement. I'd imagine there are some in stock for such occurances.

      A secret shuttle? Unlikely. Remember, US ground-based telescopes can be used to look at the space shuttle (remember the blurry photo of the damage to Columbia?) so keeping it secret from other nations would be near-impossible. Add in the capability to track such missions by radar and it becomes an impossibility.

    5. Re:Nice to see an Ares stack finally getting props by skyman8081 · · Score: 2, Informative

      It was called the X-20 "Dyna Soar". It was canceled in 1963, one prototype that was not capable of flight was ever built.

      --
      Two Roommates and a Boyfriend, updates Monday, Wednesday, and Friday
    6. Re:Nice to see an Ares stack finally getting props by Dun+Malg · · Score: 1
      Tell me if you like the fit of my tinfoil hat- but here goes: Does anyone really belive that the US doesnt have a shuttle like craft? I am sure the military has some type of way to get up and work on sattelites without the shuttle.

      Totally tinfoil hat. Why do you think shuttle pilots always seem to hold an Air Force rank? The military put all its manned-launch eggs in the shuttle basket (and GPS satellites are launche with unmanned Delta rockets). They might have conceivably developed such an orbital vehicle in secret, but there's no way they could build a suitable launch facility secretly, and not a chance in hell they could launch such a vehicle without people noticing. Orbital vehicle launches are audibly loud and visually obvious. Perhaps you've seen too many stupid TV shows that spew the absurd pseudo-military bullcrap with a straight face (cough)west wing(/cough).

      --
      If a job's not worth doing, it's not worth doing right.
    7. Re:Nice to see an Ares stack finally getting props by Seumas · · Score: 4, Interesting

      I'm not old enough to have remembered anything about anything to do with space launches and exploration, beyond historical events (landing on the moon almost a decade before I was born or updates about space probes that were sent out before I was born).

      The only "big" space events and launches in my life time were the Columbia, which exploded, when I was seven years old, the next successful launch to occur after that disaster (not a big deal, other than everyone in the world tuned in to see if they made it through the launch) and then the explosion upon re-entry a couple years ago.

      So really, my generation knows little more of the space program outside of historical events, save for disasters and budget crunches.

      People are so narrow-minded and short-sighted that they think "we should be spending money on helping our own people here on earth instead of exploring space". Well, look, there will always be misery and poverty and hunger and war on earth. We're not going to change that and we can't sacrifice exploration and the future of the human race (and ever creature on the planet for that matter) for some fantasy date way off in the future when the world will be perfect and we can proceed with uncharted territory.

      Personally, I want us to be a major player in space. We should have stations and colonies already. We should be looking toward a future when mankind has several planets and when his existence as an entire species isn't hinging on the potential devestation of any number of cosmic events that could occur on his home world.

      Space exploration is inherently about the continuation of the human race. There is nothing more natural, human or - even - American than that. And damn it, I want to have the awe and thrill of watching heros do amazing things and take amazing risks to explore the universe. My generation needs their own Right Stuff. We need our own glued-to-the-television-in-anticipation experience.

      I mean, does anyone even think that landing on the moon a second time is going to be much of a news story? I doubt there will be much coverage (and certainly not real-time) of the launch. And even when they make it to the moon, it will probably rank as a quick blurb in between sports scores and weather on the news. Nothing more. There won't be parades. There won't be speeches. There wont' be much of anything. And I sympathize with the astronauts who probably themselves dream of conguering new territory rather than re-hasing what others have already done.

    8. Re:Nice to see an Ares stack finally getting props by stuartkahler · · Score: 1

      It seems like a dumb, minor change, but it's not. Also, the shuttle is 30 year tech pimped out with 21st century updates. We need to start planning replacements before another shuttle gets destroyed, rather than wait and end up with a 5 year delay in our space program.

      The problem with the current line of shuttles is that Americans aren't comfortable with the 1/40 expected fatal disaster rate. Splitting the cargo away from the crew lets you pay extra for an extremely safe crew launch, and run a cost based risk for the cargo, where all the weight is at.

      Our next step isn't just going to the moon, but staying there on 6 month to 2 year missions in preparation for long term missions to Mars. We could easily do Apollo missions again, but there's no justification for anything less than an extended stay.

      Of course, modern americans would never accept the number of deaths that occured in the Apollo missions.

    9. Re:Nice to see an Ares stack finally getting props by mpe · · Score: 1

      Tell me if you like the fit of my tinfoil hat- but here goes:
      Does anyone really belive that the US doesnt have a shuttle like craft? I am sure the military has some type of way to get up and work on sattelites without the shuttle.


      It would be rather hard to hide launching such a vehicle. Trying to hide a launch from a miltary base would be rather stupid, since the obvious "wrong conclusion" would be that an ICBM was being launched.
      Returning a shuttle type vehicle to Earth is, if anything, even less stealthy than launching one.

    10. Re:Nice to see an Ares stack finally getting props by ArbitraryConstant · · Score: 1

      "Is the real reason we backed away from manned exploration in the 70's because the "right" people weren't making a profit off of it? It could well be that, until there is a consistent and projectable profit to be had from the manned exporation of space, we will be stuck back here on Earth. I memorized every announced space launch, manned or otherwise, when I was a kid. I looked forward to life in space, or at least something better from the space program than satellite TV and phone service. A terribly sad situation all around."

      I'm not sure about exploration, but I think there will be a profit to be made from space-based solar power in the next few decades, say before 2050 or so. Long before commercial fusion power happens.

      If that happens, the capability to launch large exploration missions will be commercially available.

      --
      I rarely criticize things I don't care about.
    11. Re:Nice to see an Ares stack finally getting props by stuartkahler · · Score: 1

      Why do you think shuttle pilots always seem to hold an Air Force rank?
      You want your JetBlue pilot landing the shuttle? The thing launches at 4 Gs and comes back in starting at over mach 20. Supersonic jet fighters are just a starting point for teaching someone to fly the shuttle.

    12. Re:Nice to see an Ares stack finally getting props by Sensible+Clod · · Score: 1

      the Columbia, which exploded, when I was seven years old

      Are you about 9 years old, or were you perhaps talking about the Challenger? ;-)

      --

      The difference between spam and poop is that you don't have to dig through septic tanks looking for real food. -- Me
    13. Re:Nice to see an Ares stack finally getting props by Sensible+Clod · · Score: 1

      blurry photo of the damage to Columbia

      Could you post a link? I don't remember hearing about that. Maybe I did, but didn't look at it. Anyway, I'm curious. It might even change my opinion on that (my personal opinion thus far has been poor maintenance/material quality, seeing that the foam thing hit the shuttle several times before without any noticeable effects).

      --

      The difference between spam and poop is that you don't have to dig through septic tanks looking for real food. -- Me
    14. Re:Nice to see an Ares stack finally getting props by stuartkahler · · Score: 1

      The shuttle's top side is easy to spot with telescopes, but very difficult to spot when it's bottom is facing the earth. It's got transponders to lock onto so you know where to look.

      If you covered the top with black radar absorbing material and had it run radio silent, you could easily keep it secret from other countries.

      The only difficult thing is launching something that big without random people seeing it and blabbing.

    15. Re:Nice to see an Ares stack finally getting props by Seumas · · Score: 2, Funny

      Oh, right. The Challenger.

      And yes, I'm nine years old. You can tell by the Slashdot UID that I joined when I turned two years old!

    16. Re:Nice to see an Ares stack finally getting props by pcmanjon · · Score: 1

      "First cynical point: They'll be using the existing shell design, because they're going to use existing everything. We pay billions, they claim to have redesigned everything, they redesign nothing. They make a few minor cosmetic changes and we all live under the assertion that we live in a brave new NASA world of progress once again while some beaurocrat reappropriates the money for his own black-ops"

      Well; mostly the money goes to the contracters such as boeing, and other large companies who do nasa's work.

      What would be cheaper is if NASA hired all their own engineers and actually built the shuttle in a NASA hangar from the start.

      It would be cheaper of they built their own shit from parts than hiring a middle man to do it for them.

      Don't believe me?
      Here is some examples:
      http://www.gcn.com/vol1_no1/project-management/267 36-1.htmlNasa hires Computer Sciences Corp for consulting.
      http://www.scrappleface.com/MT/archives/001014.htm l#001014Nasa Hires consultant on shuttle

      Everything they do is contracted through a middle man. The only engineers on staff are there to help oversee the contract work and there to help if there is problems with something.

    17. Re:Nice to see an Ares stack finally getting props by floron · · Score: 0
    18. Re:Nice to see an Ares stack finally getting props by rsynnott · · Score: 1

      The Saturn V has HORRIBLY expensive. Something more efficient would be nice. The best solution, though, might be simply to license the Energia rockets; the largest configuration (never used) was a considerably heavier lifter than Saturn V.

      --
      Me (Blog)
    19. Re:Nice to see an Ares stack finally getting props by HappyEngineer · · Score: 1
      Expensive compared to what? You could have launched the entire ISS on one Saturn V launch. How many shuttle launches at $0.5 billion each has it taken to get a partially complete ISS?

      According to http://en.wikipedia.org/wiki/Saturn_V the most expensive Saturn V cost $1.2 billion (1966 dollars) for a single launch.

      According to http://en.wikipedia.org/wiki/International_Space_S tation it will take more than 50 shuttle launches to complete the ISS.

      That's $25 billion to launch the ISS with the shuttle and perhaps $4.8 billion in today's dollars (that's just a rough guess assuming inflation doubling values every 20 years) to launch it with a Saturn V.

    20. Re:Nice to see an Ares stack finally getting props by peawee03 · · Score: 1

      If these were conscripts going into space, that'd be one thing. However, I don't see why the American public cannot accept the fact that astronauts are people who want to go up into space, while knowing the risks better than anyone else. If the people going up can't accept the risk, they don't take the offer. That simple.

      --
      I wish I could write clever and witty sigs.
    21. Re:Nice to see an Ares stack finally getting props by DSP_Geek · · Score: 1

      You sure about that $1.2 Gig? The wiki only says that was the program cost for 1966, which includes a heap of engineering. 1969 was the peak year for S-V flights, with Apollo 9 through 12.

      Astronautix quotes the flyaway cost of a Saturn V as $400 million in 1967 dollars, or about four times that in 2005 bucks. On the other hand, the Sov.., er, Russians can build Soyuz vehicles for about $20 million because they use economies of scale. The things are put together on an assembly line. If we had stuck with the S-V, perhaps it wouldn't be that cheap, but experience shows the price would drop once steady-rate production was achieved.

    22. Re:Nice to see an Ares stack finally getting props by ceejayoz · · Score: 1
    23. Re:Nice to see an Ares stack finally getting props by ceejayoz · · Score: 2, Insightful

      If that were the case, the US would have had an easy time hiding spy satellites from the Soviets. No such luck - they knew where our sats would be at any time.

    24. Re:Nice to see an Ares stack finally getting props by stuartkahler · · Score: 1

      Our lifestyle of lawsuits, safety regulations and insurance policies has made us forget that achieving great things sometimes requires risking great failures. It's turning us into cowering pansies.

    25. Re:Nice to see an Ares stack finally getting props by Mycroft_VIII · · Score: 1

      You start sending conscripts and prisoners to the moon and there is no telling what could happen, why someone could start throwing big rocks at you. Wouldn't be to hard with the right computer helping out, not that I'd know anything about that of course.

      Mycroft

      --
      https://signup.leagueoflegends.com/?ref=4c3ed6600b6ea
    26. Re:Nice to see an Ares stack finally getting props by Anonymous Coward · · Score: 0

      Check out the book "The Millennial Project : Colonizing the galaxy in eight easy steps" you have a very similar view as the author and it is a very good read

    27. Re:Nice to see an Ares stack finally getting props by RoboProg · · Score: 1

      I guess that makes me about 15 years older than you. You have my sympathy in watching the decline.

      My memories were watching the later moon landings in primary school (I was only 4 at the first moon landing, so I don't remember Neil & Buzz, sorry). Pretty cool, even if they were do-overs. I really enjoyed building model rockets the next few years.

      Then, in 76, we got to see landers land on Mars. That was a first. During the 80s, we got to see the Voyagers send back some really cool picture every year or two. These things went where pretty much NOTHING (other than Pioneer to Jupiter) had been. THAT was the legacy of NASA when I was growing up.

      Oh, they also built this silly space shuttle thing. For all I know, it costs every bit as much as a Saturn V, or at least a I, to launch, but just doesn't lift as much or as high. "But it's reusable!" (just not cheap)

      Since then, rehashing same old stuff. The newer Mars landers the last 10 years were interesting, but not really new.

      OK, I overlooked a few things. Cassini was pretty cool (planned in the early 90s, took a long time to travel, of course). Gallileo was interesting as well.

      As it is now, our current technology really only supports robots. How do we get people somewhere new before they starve or die of boredom on the trip? I'm not sure of the economic value, but it sure would be nice to see them do more than pick at the problem...
      (and ditch that boondoggle shuttle)

      --
      Yow! I'm supposed to have a plan?
    28. Re:Nice to see an Ares stack finally getting props by Dun+Malg · · Score: 1
      Why do you think shuttle pilots always seem to hold an Air Force rank?

      You want your JetBlue pilot landing the shuttle? The thing launches at 4 Gs and comes back in starting at over mach 20. Supersonic jet fighters are just a starting point for teaching someone to fly the shuttle.

      Note the tense of the verb (bolded above). All the shuttle pilots hold military ranks. No former military pilots who got out and immediately became a "NASA shuttle pilot". The shuttle fleet is already the military's shuttle.

      --
      If a job's not worth doing, it's not worth doing right.
  2. Vehicles only to look like shuttle on the outside by Anonymous Coward · · Score: 3, Interesting

    To obscure that fact that we are going back to a model used back during Apollo. After all this waste, we go back to non reusable heavy lifting and deorbiting like a stone.

  3. That's just great by Chmcginn · · Score: 5, Insightful
    As such, while much of what is done by the existing infrastructure and workforce at KSC will be similar to what is done for the Space Shuttle system, it will likely require a much smaller workforce. While members of Congress from the space states will be happy to hear of a new launch system - one that retains some existing infrastructure - they will not be happy to hear that jobs will be lost.

    So, as always, (good science/actual military need/sensible budget-keeping (pick appropriate phrase based on article) ) takes a backseat to Senator Whosit saying, "You won't cost my state jobs!"

    --
    Have you been touched by his noodly appendage?
    1. Re:That's just great by Rocket_Sci · · Score: 1

      Well, this is just one cynic's opinion. Spaceref.com's articles usually have a pesamistic, negative overtone to them.

      There will probably be a smaller work force required for these new launch systsems, HOWEVER, there will be new workforce requirements for processing and testing the CEV as well as future moon/mars exploration hardware. Keith Cowing neglects to mention that.

    2. Re:That's just great by mnemonic_ · · Score: 1

      What if it were your job?

    3. Re:That's just great by Anonymous Coward · · Score: 0

      So, as always, (good science/actual military need/sensible budget-keeping (pick appropriate phrase based on article) ) takes a backseat to Senator Whosit saying, "You won't cost my state jobs!"

      You seem to forget that the US is based on state's rights. Of course the senator will complain about losing jobs - he represents a single state! But it's up to the totality of the senate, house, and the president to control costs and do what's right for the country. If a senator wants space program dollars in his state, then he can start a state-based space program.

      This reminds me of the B1 bomber fleet issue, where some dumbos in South Dakota want to keep their airbase, instead of smartly and efficiently combining the fleet with the much better base in Texas.

    4. Re:That's just great by Anonymous Coward · · Score: 0

      I'd get a new, useful one. It can't be fun knowing that the only reason you have a job is that the machinery you work with hasn't been upgraded in half a century.

  4. SRBs not SSMEs! by mikejz84 · · Score: 5, Informative

    Overall, not a bad idea--it will be a Saturn V class booster. I am not crazy about using 6 SSMEs however, they are designed to be reusable, not flown on an expendable booster and are expensive as hell (about $300 million for the 6 first stage engines alone) Also, I seems to only speak of using 2 SRBs in the in-line HLLV, it would seem to me to make more sense to use 4 or 6 clustered around the core. After all, the shuttle SRBs are some of the cheapest power you can get.

    1. Re:SRBs not SSMEs! by Anonymous Coward · · Score: 0

      Moreover, anybody remember the Soviet N1 rocket, with its 30 motors?

      The Saturn V had "only" 5 motors, and the current shuttle has 3 SSMEs.

      We're doubling the number of motors here. I would imagine that we're also significantly increasing the risk.

    2. Re:SRBs not SSMEs! by Agripa · · Score: 2, Insightful

      It may have been there intention to make the SSMEs reusable but from what I read in the original Feynman report they were designed so close or past the engineering of the time that they had to be completely rebuilt after every flight anyway. His description of how they redefined what a "failure" was when estimating how long the each engine could safely run still gives me the creeps.

    3. Re:SRBs not SSMEs! by DerekLyons · · Score: 2, Informative
      It may have been there intention to make the SSMEs reusable but from what I read in the original Feynman report
      [frustrated sigh] You do realize that the Feynman report was written nearly twenty years ago?

      The frustrated sigh is because of people who keep quoting that damm report and act as if the Shuttle is stuck in some kind of time warp. The amount of utter ignorance on Slashdot about the Shuttle amazes and frightens me... Here's an incredible ongoing engineering feat with tons of information available on it - and everyone quotes from a twenty year old document as if it were written yesterday.

      they were designed so close or past the engineering of the time that they had to be completely rebuilt after every flight anyway.
      That was true then, but this is now. They stopped rebuilding them after every flight about 1989 or so, and stopped pulling them for inspection after every flight about 1995 or so. The current Block II SSME's are a considerable improvement in performance and reliabilty over the Challenger era ones.
    4. Re:SRBs not SSMEs! by Agripa · · Score: 1

      I probably should have been more clear. What I was getting at was because of various other concerns, the engines were poorly engineered and safety issues were deliberately ignored. Why would things have changed since then?

      NASA promised the sky with the shuttle (fast turn around, high reliablity, and high throughput come to mind) and when they could not deliver what they had promised, systematically covered it up and ignored good engineering practices. Has this aspect of NASA changed in 20 years?

    5. Re:SRBs not SSMEs! by ciroknight · · Score: 2, Informative

      It's okay you're not okay with the idea. The engines are only being used now because the current space shuttle uses them. If you really want to think about it, all they have done is strip the wings off the shuttle, stuck the shuttle on top of the liquid fuel tank, and taken two shuttle engine packages and stuck it to the bottom. Nothing more than an out of box reconfiguration of the parts, hardly nothing new has to be constructed, and all of the surplus shuttle parts get used. Not to mention it allows them to move on to more complex configurations such as 3 SRBs or 4 SRBs, or how ever many they can squeeze around that liquid fuel tank in the center with engineering feasability.

      Don't worry about it.. This step is all about phasing out the parts of the space shuttle program that just didn't work. The whole "flight to recovery" step just didn't work, so they're stripping the wings off the shuttle. The whole "riding the back of the booster" instead of on top just didn't work, so they're stripping that away. The overall package becomes a hell of a lot more aerodynamic, cheaper to manufacture (other than the refit of the buildings to deal with something taller than the Saturn-V, which in it's own way is exciting and revolutionary), and cheaper to put things in space.

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    6. Re:SRBs not SSMEs! by DerekLyons · · Score: 1
      I probably should have been more clear. What I was getting at was because of various other concerns, the engines were poorly engineered and safety issues were deliberately ignored.
      Sadly, your 'more clear' version is still not correct. For engines that are (acording to you) 'poorly engineered', they've compiled an incredible record. For engines that had 'safety issues that were ignored', there have been no significant failures. To put it shortly, this version of you dogma is no more supported by facts than the original.
      Why would things have changed since then?
      The why doesn't matter - the fact is that they have (at least so far as the SSME's are concerned). But knowing that requires leaving off the spouting of dogma and exerting an effort to actually educate yourself.
      NASA promised the sky with the shuttle (fast turn around, high reliablity, and high throughput come to mind)
      More dogma unsupported by facts - because NASA never promised anything - those were goals of the program, not performance specifications.
      when they could not deliver what they had promised, systematically covered it up and ignored good engineering practices.
      ROTFLMAO. How can you cover up something that is widely known? Once again, you spout dogma rather than examing facts. (The same for sound engineering practices - because there *are none* in the fields NASA works.)
      Has this aspect of NASA changed in 20 years?
      Has what changed? Your fantasy NASA? That I can't speak to because it exists in your head.
    7. Re:SRBs not SSMEs! by cmowire · · Score: 1

      Personally, I think that this is primarily a "let's make sure that NASA gets money by being nice to our friends"

      Remember, the shuttle infrastructure is carefully distributed around the US so that enough congressfolk would fight against it being canceled.

      This continues the process and lets NASA keep their people, while trying to have more up and down cargo mass than the shuttle and to be safer. If they write the t/Space folks a big fat check, most of the traditional contractors would put pressure on congress.

      The SSME thing didn't make sense until I realized that it's probably mostly so that they can expend their SSME parts inventory and figure out what the SSME folks will work on next before they switch to proper expendable engines.

  5. Exploding parts? by Liquidrage · · Score: 0

    Of course, they plan to leave the exploding parts out of their next versions.

    Maybe it's just me, but I didn't find that attempt at humor cute. It's in poor taste and I don't believe it was proper for a submission.

    1. Re:Exploding parts? by Anonymous Coward · · Score: 0

      So you would prefer that they left the exploding parts in?

      I don't get it.

    2. Re:Exploding parts? by Profane+MuthaFucka · · Score: 1

      Someone is always going to react like this. http://www.idrewthis.org/2005/reaction.html

      --
      Fascism trolls keeping me up every night. When I starts a preachin', he HITS ME WITH HIS REICH!
    3. Re:Exploding parts? by georgewilliamherbert · · Score: 5, Interesting
      without "exploding parts", how will the shuttle take off? Isn't the ignition of the bosters and kind of explosion?
      No, not explosives.

      The solid boosters ignition starts with a small Nasa Standard Initiator (NSI) http://www.hstc.com/pdf/nsi.pdf.

      That then ignites a small pellet of boron / potassium nitrate.

      Which ignites a small rocket motor which is about 4 inches long.

      Which ignites a medium sized rocket motor about three feet long.

      Which fires a jet of flame for about a tenth of a second, all the way down the whole inside length of the solid boosters, which ignites the whole inside at the same time.

    4. Re:Exploding parts? by Anonymous Coward · · Score: 1, Insightful

      i could't agree more. i'd like to punch that little smartass "zonk" for that remark. what an asshole.

    5. Re:Exploding parts? by Anonymous Coward · · Score: 0

      You are right. It's weird that people are more eager to defend inappropriate behavior over a simple sense of decency and respect for astronauts that have lost their lives.

    6. Re:Exploding parts? by Anonymous Coward · · Score: 0

      now if we'd stop spending our money exploding things in the middle east, where [sic] could have these new launch vehicles sooner rather than later.

      Does someone seriously think that if we stopped blowing things up in the middle east, we wouldn't soon start seeing things blow up here at home?

      I absolutely promise you, if we withdrew from Afghanistan and Iraq tomorrow, someone would IMMEDIATELY start plotting to fly a plane (or just an RPG) into a shuttle as it sat on the launch pad being fueled up.

      I take that back. I can absolutely guarantee that someone is ALREADY plotting that. Pulling out of Afghanistan and Iraq will only make their job easier.

      Insert "-1 Offtopic" moderation below.

    7. Re:Exploding parts? by Electrawn · · Score: 1

      There are exploding parts, The nuts holding the orbiter to the platform blow on liftoff. The eight giant bolts holding the orbiter to the platform are severed at launch.

      The shuttle's SRBs would take the platform up with it if the bolts are not blown. I believe this is the last possible thing to go wrong that you can pull back from (At like t minus .01) before the candle is lit.

      http://yarchive.net/space/spacecraft/explosive_bol ts.html

    8. Re:Exploding parts? by Anonymous Coward · · Score: 0

      You're right of course... It wasn't a bunch of sand-niggers who were killed, but...(drumrolls, fanfares)...True American Heroes! You mustn't laugh about those!

  6. What's old is new again by AKAImBatman · · Score: 5, Informative
    The Crew Exploration Vehicle is certainly nothing new. Nor am I surprised by NASA's desire for a more powerful booster. It is, however, good to see NASA again contemplating super boosters. While many people feel that such boosters are useless (hi Rei!), there are certain circumstances under which they can be tremendously useful.

    Take the case of SkyLab vs. the International Space Station. According to Wikipedia, the two stack up as follows:
    Mass:
    SkyLab: 77,088 kg
    ISS: 419,000 kg (when completed; currently 183,283 kg)

    # of Lauches for complete construction:
    SkyLab: 1
    ISS: 50 (39 Shuttle flights)
    Now with some simple math, we find that SkyLab averaged 77,088 kg per launch which the ISS averages about 8,380 kg per launch.

    If you didn't just do a double take, you should have. The booster that lifted SkyLab stuck over 9 times the mass into orbit that current ISS flights do! Just what is going on here?

    The answer lies in the Saturn V Booster vs. the current Space Shuttle. A three stage Saturn V had a maximum payload of 118,000 kg. (That's enough to send the entire ISS up in only 4 flights.) The Space Shuttle, OTOH, only has a cargo of 28,800 kg to LEO. So why does NASA want to reuse the tech? Because of the weight of the shuttle itself.

    The Space Shuttle orbiter weighs in at a whopping 104,000 kg! Combined with its cargo capacity, the Space Shuttle is capable of 132,800 kg to LEO! That's way more than the Saturn V could manage on all three stages. So if we ditch the orbiter itself, the shuttle's infrastructure could be the most powerful superbooster ever designed.
    1. Re:What's old is new again by Rakishi · · Score: 3, Insightful

      You're missing certain points. That shuttle weight includes the engines, have fun launching things without those. So that wil ltake up some mass as well. In addition the Shuttle engines were designed along the lines of: efficiency and reusability above all else including cost. Yup, they're expensive, efficient and designed to be reused. So those of course can't be used for a non-reusable launch vechicle which means the engines used won't be quite as good. It can stil lsend a lot into LOE but not nearly as much as you're talking about.

    2. Re:What's old is new again by rsynnott · · Score: 1

      Have a look at the Energia-4 rocket (used for Buran, which had no large rockets of its own). Something along those lines might work well.

      --
      Me (Blog)
    3. Re:What's old is new again by Rakishi · · Score: 1

      Yes and I don't believe the engine (used in the prototype) was reusable although I might be wrong. Now, there was a design with a reusable engine/central stage however that added complications and was in essence a shuttle in itself (it was to glide back down). The Energia engine also uses different propellant and I'm not sure how that impacts engine cost/efficiency.

      It did occur to me that one way of reusing the engine may be to use a two-stage central section. This of course adds weight and complexity (more engines and a need for some recovery method), which may in the end not be worth it compared to getting a cheaper engine (shuttles are not launched nearly enough for such "excessive" reusability to be worthwhile). This method would also have the problem of needing to be dropped early enough to not require heat shielding, which may make the use of the shuttle main tank pointless (ie: it sends things up too high on its own to allow this).

      Personally, I'd just go with cheaper engines since it works rather well for other rockets (and you'd probably save a lot from simply not having to deal with the shuttle). In end it'd probably still be a lot cheaper than using a shuttle to send things up.

    4. Re:What's old is new again by DerekLyons · · Score: 1
      If you didn't just do a double take, you should have. The booster that lifted SkyLab stuck over 9 times the mass into orbit that current ISS flights do! Just what is going on here?
      What's going on? Ignorant comparison of apples and oranges.

      Yes, there are 50 flights to ISS during the construction phase - but that includes the manned Soyuz flights, which carry crew, not construction materials. Of the 39 Shuttle flights only about 20-21 of them carry construction materials, the remainder carry crew and/or consumables. 419,000/21= approx 20,000kg/flight. (The missing 8,000 odd kg/flight (on average) from nominal capacity is due to the performance hit caused by placing ISS in the 51 degree orbit that the Russians can reach vice the 28 degree orbit the Shuttles nominal payload is specified for.)

    5. Re:What's old is new again by AKAImBatman · · Score: 1

      Yes, there are 50 flights to ISS during the construction phase - but that includes the manned Soyuz flights, which carry crew, not construction materials. Of the 39 Shuttle flights only about 20-21 of them carry construction materials, the remainder carry crew and/or consumables. 419,000/21= approx 20,000kg/flight.

      While I was being simplistic, you forget that I left off the ~30 Progress flights that support the ISS. That's where the brunt of the human carrying capacity is.

      Even if we take your figures at face value, 20-21 flights is still significantly more than the four flights required by the Saturn V. And since things would go up in fewer pieces, the number of humans sent up to do construction would be reduced. Which means fewer expensive flights charged toward the construction of the station. :-)

      (The missing 8,000 odd kg/flight (on average) from nominal capacity is due to the performance hit caused by placing ISS in the 51 degree orbit that the Russians can reach vice the 28 degree orbit the Shuttles nominal payload is specified for.)

      Correct. If we were smart, we never would have stuck the ISS there. Its current position is useless as a lunar staging point. But the cutbacks during the Clinton administration pushed NASA into being more Internationally Friendly than Exploration Friendly. Kind of sad, actually. The ISS will never be useful for anything long term other than just being there. :-/

    6. Re:What's old is new again by rsynnott · · Score: 1

      Yep, the return-to-earth version of the Energia-2 was actually completed, and apparently worked quite well. Equivalents for the two larger designs were under development when the project was canceled.

      --
      Me (Blog)
    7. Re:What's old is new again by Rich0 · · Score: 1

      I wonder what the cost would be to move it?

      Maybe launch some ion engines and over a couple of years keep pushing it a degree at a time? I imagine that in its partially-completed state that the ISS would have solar power to spare to power the ion drives, which would simplify engine design. You could also give them replacable fuel canisters and send them up in progress vessels. The ISS itself probably will maintain its own orientation (assuming the thrust is reasonably well-balanced), so we also don't need all kinds of fancy guidance hardware.

      If they do want to move it, they might as well start now while it is still missing much of its final mass.

    8. Re:What's old is new again by ciroknight · · Score: 1

      While you have valid points (the space shuttle's weight), you are also missing some other crucial valid points.

      The Saturn V only furnished the ability to lift 3 people into space at a time as it was constructed. While this was enough in the past, it simply isn't enough to construct something like the ISS, unless you want to have robots do it all, which adds lots of mass. The construction of something as complex as ISS needs to be done by human hands still to make sure everything is done right.

      The Saturn V costs a lot to build, especially since none of the parts are getting reused. The shuttle is a constant cost per mission (refit, refit the SRBs, new fuel tank). This would have to be redesigned simply because the Saturn V's design would have bankruped NASA.

      3rd, you missed a valid point about the Saturn V's design. You can always extend the Saturn V's lifting capacity by adding bigger engines, making it taller, making it wider, making it weigh less. The only thing you can do on the space shuttle without having to redesign the world is make the shuttle weigh less, which currently isn't even a notion since the damned things are so old that anyone's afraid to.

      Also, space shuttle maintainance is probitively expensive to keep flying these catastrophies. We simply can't come up with a way to repair these things in space, where with a "launch and throw away" configuration, you simply never have this step. If a crew gets stranded in space, send another to catch them.

      All and all, we know now that the ways we were doing things years ago was the right way to get things into orbit. Now we're doing something about it (finally... it's about damned time). Given all the cutbacks in NASA's funding, it was an eventuality we'd go back to cheap, disposable rocketry, but at the same time, we need to think about reusing what we can, simply because a lot of the parts CAN be reused and in the longer run will make it cheaper.. (Just think what would have happened if we had to build a new shuttle every time we went to space..).

      --
      "Victory means exit strategy, and it's important for the President to explain to us what the exit strategy is." G.W.Bush
    9. Re:What's old is new again by AKAImBatman · · Score: 1

      The Saturn V only furnished the ability to lift 3 people into space at a time as it was constructed.

      That's incorrect. The Saturn V could lift any vehicle/cargo that was under 118,000 kg. Which means that it could have lifted far more than three people in LEO. However, the Saturn V was not used for lifting people into LEO, it was used for obtaining the necessary Delta V to send 3 people, a command module, a lunar lander, plus enough fuel for the return flight, to the moon.

      While this was enough in the past, it simply isn't enough to construct something like the ISS, unless you want to have robots do it all, which adds lots of mass.

      You still need humans to construct it, yes. Which is why there were/are ~30 Progress Flights scheduled in addition to the 50 construction flights (39 shuttle).

      3rd, you missed a valid point about the Saturn V's design. You can always extend the Saturn V's lifting capacity by adding bigger engines, making it taller, making it wider, making it weigh less. The only thing you can do on the space shuttle without having to redesign the world is make the shuttle weigh less, which currently isn't even a notion since the damned things are so old that anyone's afraid to.

      1. The Saturn V wasn't going to be very easy to extend in the fashion you suggest. The fact that the thing flew was a marvel of engineering. Adding more engines, however, would only have destabilized the design.

      2. My point was that if you ditch the orbiter (the thing that costs more than a brand new rocket every flight, more than even a mass produced Saturn V) and use the engines in a shuttle-derived vehicle, you'll have something even more powerful than the S-V.

    10. Re:What's old is new again by DerekLyons · · Score: 1
      While I was being simplistic, you forget that I left off the ~30 Progress flights that support the ISS. That's where the brunt of the human carrying capacity is.
      No, you are not being simplistic - you are being ignorant. Witness above where you assign 'human carrying capacity' to an unmanned spacecraft!
      Even if we take your figures at face value, 20-21 flights is still significantly more than the four flights required by the Saturn V.
      Actually, it's probably considerably *more* than four flights - since your quoted capacity to LEO is based on the 28 degree orbit of Skylab rather than the 56 degree orbit of ISS. It also ignores the deadweight of the shrouds and cargo support/adapter hardware. (For example Skylab's weight included 8 tons of IU - needed by the booster, but not by Skylab.)
      And since things would go up in fewer pieces, the number of humans sent up to do construction would be reduced. Which means fewer expensive flights charged toward the construction of the station.
      It's less of a savings than you might think. The marginal cost of a single Shuttle mission is around 50-80 million dollars US. OTOH - a single Saturn V costs around 500 million dollars US. (Shuttle flight costs are sensitive to flight rate, whereas Saturn V flights are virtually non sensitive to flight rate.)
      Correct. If we were smart, we never would have stuck the ISS there. Its current position is useless as a lunar staging point.
      Which is hardly surprising - as it's role isn't as a lunar support base. Even if it were in a more friendly orbit, it's hideously unsuited to being a lunar support base. (More millions to convert it - less saving than you suppose above.)
      But the cutbacks during the Clinton administration pushed NASA into being more Internationally Friendly than Exploration Friendly.
      Is it painful to be as ignorant as you keep being? NASA's budget wasn't significantly cut during the Clinton years - it was virtually level. The 'Internationally Friendly' NASA was the result of a Presidential mandate. (And for not being 'exploration friendly'... You might look at the history of Cassini and the current Mars rovers, etc... and see on who's watch they were nurtured.)
      The ISS will never be useful for anything long term other than just being there. :-/
      That's a belief held only by those sad little children who believe that the only thing to do in space is to Boldy Go.

    11. Re:What's old is new again by AKAImBatman · · Score: 1

      Witness above where you assign 'human carrying capacity' to an unmanned spacecraft!

      Hmm... seems you're right. What am I thinking of then? /Me starts digging

      Ah, the Soyuz capsule of which the Progress is a derivative of. My bad. :-)

      Actually, it's probably considerably *more* than four flights - since your quoted capacity to LEO is based on the 28 degree orbit of Skylab rather than the 56 degree orbit of ISS.

      Considerably more? Doubtful. Four flights is 472,000 kg to LEO. The final weight of the ISS is supposed to be 419,000 kg. That leaves us with 53,000 kg to spare.

      Now the Shuttle drops about 8,000 kg of cargo capacity to reach the 51 degree orbit. (If you've got a good calculation for the Delta-V required to get there, now's a good time to jump in. Otherwise I'm going for the educated guess.) 8,000 kg is about 28% of the 28,000 kg to LEO. Using the decrease of 28%, we get a S-V rating of ~84,960 kg per flight. Which works out to about 5 flights with some room to spare. Just to be on the safe side, we'll call it six flights. That's still far less than the 21 you're suggesting. It's true that the shuttle also carries people up, but I'll get to that in a moment.

      It's less of a savings than you might think. The marginal cost of a single Shuttle mission is around 50-80 million dollars US. OTOH - a single Saturn V costs around 500 million dollars US. (Shuttle flight costs are sensitive to flight rate, whereas Saturn V flights are virtually non sensitive to flight rate.)

      The Space Shuttle currently flies for about 500 million per flight. This article suggests that the average cost of a shuttle flight is 1.3 billion! (backed up here)

      For each shuttle flight vs. S-V flight you get less cargo, and more costs! And using the 1.3 billion figure per flight, you could launch TWO Saturn V's per shuttle flight! One with Space Station parts, the other with a dozen or so humans in a capsule.

      Which is hardly surprising - as it's role isn't as a lunar support base. Even if it were in a more friendly orbit, it's hideously unsuited to being a lunar support base. (More millions to convert it - less saving than you suppose above.)

      Except that one of the original roles of Space Station Freedom was as a lunar staging point.

      NASA's budget wasn't significantly cut during the Clinton years - it was virtually level.

      The funding cuts to the Space Station Freedom program, not the cuts to NASA as a whole. Budgeted funding for the program was cut time and time again until the plan was finally cancelled and the ISS given the go-ahead in its place.

  7. Exploding parts? by Suburbanpride · · Score: 2, Insightful
    without "exploding parts", how will the shuttle take off? Isn't the ignition of the bosters and kind of explosion?

    The escape hatch also has exploding bolts.

    The only exploding part that should be left off is the leaky o-rings that helped the chalenger to exploded in '86.

    now if we'd stop spending our money exploding things in the middle east, where could have these new luanch vehicles sooner rather than later.

    --
    sorry 'bout the mess...
  8. a rocket? by globaljustin · · Score: 1, Insightful

    from TFA:

    The second vehicle to be pursued is based on a 5 segment Solid Rocket Booster (SRB)

    Aren't we better than this? I can understand using barbaric rocket technology to lift big payloads, but it is time that NASA got serious about X-project and spaceshipone type design. A re-usable vehicle that could take off from space, go into orbit, dock w/ space stations, etc., and then land back on earth is well within our reach technologically. Why not?

    --
    Thank you Dave Raggett
    1. Re:a rocket? by Guppy06 · · Score: 1

      "but it is time that NASA got serious about X-project and spaceshipone type design. "

      Because they got nowhere near orbit.

      "A re-usable vehicle that could take off from space, go into orbit, dock w/ space stations, etc., and then land back on earth is well within our reach technologically."

      Within our technological abilities? Perhaps. Within our budget? Heck no. And then there are other options that could help that trigger the NIMBY crowd, like nuclear propulsion.

    2. Re:a rocket? by everphilski · · Score: 2, Informative

      detla-V = g*Isp*ln(m1/m0)

      where:

      delta-V = 7600 m/s for LEO (a little more for space station)

      g = 9.8 m/s^2 (gravity)

      Isp = 295-450 1/s (Specific Impulse, basically a thrust rating of a propellant. 295 for a solid in a vacuum, 450 for a SSME in a vacuum. Lower on the surface of the earth)

      m0 = takeoff mass

      m1 = mass on orbit

      Play around with the numbers. You will find out quickly that single stage to orbit with any significant amount of payload is ... hard. And this doesn't include mass requirements for coming home: retro-rockets, wings and landing gear or parachutes and more rockets, etc.

      Until some material advances are made (mass ratio, m1/m0 can be imrpoved) or nuclear propulsion can be considered an acceptable option (The technology exists: Isp = 800-900) single stage to orbit with any more than 1-3 human beings will be a difficult feat.

      Staging alleviates the problem. Check out Sutton's Rocket Propulsion Elements or Hill & Peterson's Mechanics and Thermodynamics of Propulsion.

      Re-using existing technology is the quickest, cheapest, easiest way to get back in business. I think it's a pretty good idea.

      IAAAE (I am an Aerospace Engineer)

      -everphilski-

    3. Re:a rocket? by TheKidWho · · Score: 1

      Well, the SRBs are reusable anyways, and presumably so would the vehicle riding on top of the SRB stack. So the majority of the vehicle is actually resuable(except for the liquid final stage).

    4. Re:a rocket? by LWATCDR · · Score: 1

      Because putting things into orbit is hard.
      A single stage to orbit is REALLY HARD.
      A new and innovative launch system is risky and Expensive.
      Take a look at the X project ships. Only one flew with a crew and none of them would have gotten close to orbit. Heck none of them got close to the X-15 in speed and that was over forty years ago. Not to dismiss what Rutan did but it IS not up to what Nasa was doing over 40 years ago.
      I swear people who do not know understand something seem to instantly assume that it must be simple.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    5. Re:a rocket? by Antique+Geekmeister · · Score: 1

      That is not Rutan's fault. The difficulties he faced were not so much physical as political, with NASA's blatant and covert interference with his project. Take a look at the numbers. Rutan and his cohorts could replace the entire Shuttle operation in 2 years with half the annual budget, if NASA would fire the bureaucrats who are actively interfering with his project. The basic technologies of his design are more modern, simpler to implement, and a prime example of a "skunkworks" project of brillienat people with a good budget and excellent managers not interested in building fiefdoms at the expense of the project.

    6. Re:a rocket? by globaljustin · · Score: 1

      You make a good case for staging, probably not unlike the case that the NASA engineers made. The 'cheap and easy' way...well, cheap and easy gets us little science fair projects in space...forward thinking and risk taking get us to the next level.

      What bothers me is the LACK of motivation to truly innovate. Maybe I'm an idealist, but aren't all 'next steps' in any field inherently 'risky'?

      The material advances and nuclear propulsion of which you speak are within technology's grasp. A re-usable earth based vehicle that can carry passengers and a payload could exist right now if the X project had gotten the funding and attention it deserved. We just have make our minds up not to stop until we get it right.

      Remeber, what makes rockets go up? funding!

      Do we need Russians to compete with or something?

      --
      Thank you Dave Raggett
    7. Re:a rocket? by LWATCDR · · Score: 2, Insightful

      You really are nuts. Blatant and covert interference? Replace the Shuttle in two years with half the annual budget?
      Okay I should not bother since you are clearly insane but I am bored.

      1. Rutan's propulsion system has a MUCH lower specific impulse than the shuttle. A hybrid rocket that could reach orbit would be HUGE. And a single SSTO using the propulsion system that Rutan built would be impossible.
      2. Just to build and test man rated spacecraft would take more than two years! Just to write and test the flight control software would take that long. You can not build a modern biz jet from the ground up in two years. So the idea that Rutan could make a shuttle replacement in two years is clearly impossible.
      3. The White Knight/Spaceship one could not scale up to launch 33,000 lbs to orbit. Which is what the shuttle is capable of.

      Rutan did a great job with Spaceship one. I would bet you a BIG pile of cash the even he would not claim that he could build a space craft that could carry 33,000 to low earth orbit in two years.

      Final blatant and covert interference? NASA is using the White Knight as a drop vehicle right now? Rutan has done a lot of projects for NASA including the scissor wing AD-1! Odds are he got help not interference from NASA.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    8. Re:a rocket? by everphilski · · Score: 1

      You have to look at it the same way the rocket industry was built. Simplifying and omitting a lot, in the 1930's-40's the Germans built a series of short-range suborbital rockets with the intent of hitting London and other targets. America and Russia both get their hands on rocket scientists and hardware. America then plays with this technology for damn near 15 years before they send a human being up. That's quite a development cycle. Roughly 25 years. And there were people who experimented with rockets before then: Tsiolkovsky in Russia laid down the foundation for H2-O2 rockets in the early 1900's (the rocket science institute in Russia followed up on these ideas before the Germans); Hermann Oberth in Germany did work in parallel. Robert Goddard was experimenting in America. So a 25 year development cycle on a technology that had existed in smaller scale forms for a good 15-20 years in physical form and even longer on paper.

      A new technology would presumably need a similar development cycle. Laser propulsion, space tethers, I'm not sure what you have in mind ... needs to be tested on paper (in computer simulation) with realistic, feasible materials, then implemented on a non-human test scale, and then tested on a human scale with "test pilots." Then development of a commercial version can begin. Remember... we've been spacefaring for over 40 years now, and we still haven't commercialized it yet.

      I am very sceptical that funding **every** X-project would get us any closer. A lot of X projects were funded. Most of them have to do with experimenting with aerodynamics and propulsion: that doesn't change the fact that we are still bound by the chemical energy available to us.

      Nuclear propulsion is ready as soon as society says it is acceptable. Project Orion in the 1960's developed it, and was cancelled. There exist designs (indeed; Pratt and Whitney is ready to make a tri-mode nuclear engine called the Triton with Isp ranging from 300-900).

      -everphilski-

    9. Re:a rocket? by Buran · · Score: 1

      SS1 wasn't designed for orbital flight. There are plans in the future for orbital vehicles, but you start somewhere and test your technology before you get really ambitious. This is in part why the Mercury program launched a number of unmanned flights first, then two manned suborbital flights before finally launching a manned orbital mission. They actually cut one suborbital manned flight off the schedule in order to reach manned orbital status sooner.

    10. Re:a rocket? by adinb · · Score: 1

      So what's your opinion on tethers? (IAASE (Systems Engineer), NSS Member, no I don't work for Tethers unlimited) A scaled-up horizontally launched platform (like the successor to SS-1) can reach the minimum altitude for a tether and transfer a crew module into LEO, or possibly MEO. From there you can just about go anywhere (L1 or L2). (Overview on Lagrange Points here)

      --
      Moderation is for Monks!
    11. Re:a rocket? by globaljustin · · Score: 1

      A new technology would presumably need a similar development cycle.

      I disagree. You make a false analogy assumption, so your 25 years number is invalid. Sub-orbital rockets have been around alot longer than the 1930's. What happened is humans were able to fashion more powerful fuels for rockets, and stronger, more reliable materials to harness that power. The Nazi's had a military use for it and the will to develop it.

      Nuclear propulsion is ready as soon as society says it is acceptable.

      You're proving my point for me about motivation here. You're saying we have the technology but we aren't using/developing it. Check my last post...that's exactly my point. Who exactly is stopping us from using these 'existing' designs? Who says nuclear power is unacceptable anymore anyway? I'm ready, damnit! Sign me up.

      Look, i think we're on the same team here. I just don't understand how you can say 'we need roughly 25 years for new technology' and then in the same post say that nuclear powered Pratt and Whitney tri-mode nuclear engines are here and ready to go, but the nebulous 'society' isn't ready. There's a logic breakdown.

      Laser propulsion, space tethers (i think they're cool), Triton nuclear engines, I'm in favor of whatever...just give me something to give me hope that human space travel is not doomed to become space tourism in dandified Virgin Galactic X-plane rip-offs en route to moon condos...

      ps...speaking of sub-orbital rockets...happy 4th!

      --
      Thank you Dave Raggett
    12. Re:a rocket? by Black+Tezcatlipoca · · Score: 1


      Nuclear propulsion is ready as soon as society says it is acceptable. Project Orion in the 1960's developed it, and was cancelled. There exist designs (indeed; Pratt and Whitney is ready to make a tri-mode nuclear engine called the Triton with Isp ranging from 300-900).


      I prefer the uranium tetra-bromide salt water method myself, although there is absolutely ZERO chance that anyone will allow it to be used for LEO boost stage. For a start, it's probably a violation of the 1968 test ban treaty.

      You pump a roughly 90%+ enriched uranium fuel mix from nice neutron absorbing boron-carbonate capilliaries into a detonation chamber, and allow it to go critical. Basically a liquified fission bomb with an Isp of about 10000s.

  9. Nope, he's just... by Chmcginn · · Score: 3, Funny

    trying to exercise his constitutional right to never, ever be offended.

    --
    Have you been touched by his noodly appendage?
    1. Re:Nope, he's just... by HAKdragon · · Score: 1

      OT, but it reminds me of something I heard before and that's "If you're not offended atleast atleast once a month, then your society is not free" or something like that.

      --
      "Our opponent is an alien starship packed with atomic bombs. We have a protractor."
    2. Re:Nope, he's just... by Anonymous Coward · · Score: 0

      I find it interesting, as a European living in the States, how everyone here treats everyone else with a glowing (fake) smile, and as if anything anyone says or does could be interpreted as an offence by someone else.
      One of the dominant thoughts, especially by those in subaltern positions, seems to be "Please don't hurt me! Please don't sue me!"

      It freaks me out.

    3. Re:Nope, he's just... by Liquidrage · · Score: 1

      No, you're confused.

      I believe a submission shouldn't treat events that led to the deaths of several brave men and women as a opportunity to crack a joke.

      I thought it was in poor taste and said so. I do not however believe I should be protected from being offended. In fact, I wasn't offended by it in the common use of the word. I thought it was in poor taste but it didn't "hurt my feelings" or anything. I just do not believe it was proper.

      There's a very large difference between positing my opinion on something that I don't agree with and asking that people never do things that I don't agree with.

    4. Re:Nope, he's just... by Anonymous Coward · · Score: 0

      Poor taste? More like you're a whiny fucktard who wants to pretend reality doesn't exist and live in a fantasy land where tragedy is hidden and never talken about.

      We as humans make mistakes in our endeavours. The space shuttle accident is one of them. We strive to make better as humans. I really hate fucktards like you who sit here and get all uppity becuase people actually care. Do you think the people who are working to fix those "exploding parts" never cracked a smile or let off a joke or two while working on making the shuttle work right?

      Talk to some veterans of wars and see their attitudes towards what they experienced. They often use humor to lighten what was otherwise a sad and tragic time for them, but they don't try to hide it or pretend they are in some fantasy world.

      Get lost dipshit.

      Coward.

    5. Re:Nope, he's just... by Liquidrage · · Score: 1

      Talk to some veterans of wars

      I already served my time on active duty thanks. You? Doubt it.

      Sorry buddy. A story submission doesn't seem like the proper place to make a whitty attempt at humor over a couply of tragedies. Do people joke about thinks like this at times? Sure. You think it's fine anwhere at anytime? Great for you. It's called discussion. I offered my view on it. Sure. I remember chuckling at the Need Another Seven Astronaut joke even if I was a tad younger at the time. But if I were making a speech to NASA brass I certainly would think it would be proper to use that one. Somewhere betwee drinking with your buddies at the bar and talking to NASA brass lays a story on /.

      And I don't care how many people whine about me voicing my personal opinion in a polite and concise manner. I'll keep on doing it even if people like you don't like it.

      And what's even sadder is apparently I'm not even allowed to say I think something is in poor taste without assholes like you and some others acting like I just am some ulta-offended, always PC, yuippity up.

      No, I thought something was in poor taste and said so. I vigorously defend the rights of people to say what they want. This isn't about denying tragedy. This is about beliving something was in poor taste and exercising my right to say so. Nothing more. Nothing less.

      Yeah, I'm so wrong. I don't really think a story submission that will be read by millions is a great place to make a subtle joke about events where people died, and all I stated was that I thought it was in poor taste. How fucking PC of me.

    6. Re:Nope, he's just... by Anonymous Coward · · Score: 0

      I already served my time on active duty thanks.

      Oh, so you travelled to other countries and killed people there. And I guess you had fun doing it, right? You're the absolute last person to tell anyone about the approprieteness of jokes. You're a sick person without morals.

  10. The new design looks top-heavy. by NRAdude · · Score: 0

    I think they're wasting their time trying to move weighty tools into space. Should concentrate on smaller devices. I can imagine a robot same size as a Radio Shaft "Zip Sap" moving quickly to space and being more maneuverable on the planet subrate with long-legged tentacle action like in the movie "War of the Worlds" NASA always complains it couldn't fit all of its test equipment in such a small rover, and demand millions of ($) to launch such a tool. I think they should minimize such large launches with hundreds of smaller launches of smaller equipment; and learn to assemble them in a vaccum or in-route. This makes better redundancy. It would be a shame to lose a ten billion ($) project in one launch, then lose a thousand ($) part of hundreds of other parts in a micro-lauch.

    --
    without prejudice
    1. Re:The new design looks top-heavy. by Guppy06 · · Score: 2, Insightful

      "Should concentrate on smaller devices. I can imagine a robot same size as a Radio Shaft "Zip Sap" moving quickly to space"

      Space is still way the heck up there, and you still need lots and lots of fuel and oxydizer to get up to LEO. You don't see stuff the size of sounding rockets getting up there.

      Besides, the bigger the pieces we can send up there, the less on-site (i. e. on-orbit) assembly is needed when it gets there. Even for us on the ground there is a lot to be said about pre-fabrication.

    2. Re:The new design looks top-heavy. by Inspector+Lopez · · Score: 2, Interesting

      It would be great to be able to put up 100-to-1000 kg payloads in LEO, inexpensively, reliably, frequently. The space science community would be overjoyed, but they would not use the ability to assemble big things from little things.

      Suppose that the way you got a new automobile was by having it mailed to you in 50 pound packages. It is probably possible to get cars this way, but the cars would be very different from the cars we have now --- heavier, slower, less fuel efficient, leaving a rather larger trail of (packaging) debris, and a few specialized tools, that would be useful for nothing else. Such cars would probably have no welds for assembly, and manufacturing techniques which required hazardous chemicals or heat processing would simply not be available. The lesser performance would arise from the "design for assembly" which is rather different from "design for manufacturability." (If the 50 pound limit was enforced, there would be no monolithic engine blocks; this would probably imply the existence of many small engines coupled together with a complex, heavier, transmission.)

      The upshot here is that, from the point of view of weight, energy efficiency, complexity reduction, maintainability, testability, there is practically no sense in which it would be advantageous to create a big thing by launching little things for remote assembly, unless it becomes far cheaper (cost per kilogram) to launch little things than big things.

    3. Re:The new design looks top-heavy. by shadowbearer · · Score: 1

      Even for us on the ground there is a lot to be said about pre-fabrication.

      Perhaps we need to do more work on post-fabrication technology :) ala teleoperated/semi-autonomous assembly robots. Why not?

      If we're going to move to a small-mass cargo transport for individual cargo pieces (ala the space elevator, smaller launchers, "railguns", etc) it would make more sense to develop advanced tele-operated assembly capabilities anyway, wouldn't it? That begs the question of whether multiple smaller launchers will be more "economical" - but my guess is that in the long run that isn't going to matter much as other nations pursue their own options. We'll *have* to if we want to maintain a space presence.

      We certainly have the needed computer power in small packages now, and the datalinks available (especially in LEO! :) and R&D on microsats has accomplished some incredible things.

      Of course we have to reflect that capability (or future :) in our designs now... and I don't think there are enough who are thinking that far ahead.

      Sigh.

      Cheers,
      SB

      --
      It's old. The more humans I meet, the more I like my cats. At least they are honest.
    4. Re:The new design looks top-heavy. by Guppy06 · · Score: 1

      "We certainly have the needed computer power in small packages now,"

      How small is it once its been hardened to withstand the radiation? And once hardened, what's its heat dissipation look like, especially in the absence of convection cooling?

      "and the datalinks available (especially in LEO!"

      How well will those datalinks work in orbit? Would the sun effectively jam them? And if they are able to talk to each other, would their tranceivers be good enough to hear and talk to the ground if/when needed?

  11. good designs but... by J05H · · Score: 2, Insightful

    Both the single-stick CEV launcher and inline Shuttle-derived HLV are good, useful rocket designs. They have hardware heritage, long experience and the SRBs are one of the safest (if roughest) rockets around.

    The only problem is that this continues the massive NASA workforce, which is going to limit the actual implementation of said designs. The standing army needs to be repurposed instead of played to - shutting down the OPF isn't enough. These are massively labor intensive rockets they are creating - they may create as many problems as they solve.

    The Shuttle has got to go, I'm glad Dr. Griffin is taking this step.

    Josh

    --
    gigantino.tv - Heavy but weighs nothing.
    1. Re:good designs but... by TheKidWho · · Score: 1

      Well if they could start pumping out more then 5 launches per year, say 10-15 launches per year, then that giant army would be worth it wouldnt you think?

    2. Re:good designs but... by J05H · · Score: 1

      >Well if they could start pumping out more then 5 launches per year, say 10-15 launches per year, then that giant army would be worth it wouldnt you think?

      That depends - how much of a brain drain on the private startups and Big Aero would that cause? Also, there is an economic impact. NASA almost refuses to use the EELV (Atlas 5, Delta IV) because of price (they are "Air Force Rockets"), and a new set of NASA rockets takes away from making them cheaper by economy-of-scale. A good argument can be made for starving the EELVs out, anyway, because of their cost. A Shuttle-derived vehicle is not going to be cheap to fly, though. The components are incredibly expensive, the labor involved is vastly more complex than necessary (re: SpaceX, Bigelow and Scaled construction and management) and there is an unbelievable amount of paperwork involved. So, no, increased flight rates on that order might not make it worth it, especially with Russian and startup American rockets that are significantly cheaper.

      15 launches/year at current manned-flight budget makes roughly $350million/flight. That is still vastly more expensive than Soyuz or Delta.

      --
      gigantino.tv - Heavy but weighs nothing.
  12. What's On The Drawing... by __aaclcg7560 · · Score: 3, Insightful

    It's nice to know that NASA is putting together two new launch vehicles for cargo and crew. However, what's on the drawing board to follow those vehicles in the next 10, 20, or 50 years from now? Or, is NASA is doomed to repeat the shuttle experience again by using the new vehicles for the next 30 years without having anything new in the pipeline?

    What we need is NASA to get out of the vehicle design business and let the free-market industry come up with innovative designs to build, test and deliver. It should be like building cars when the designs keep getting better and more reliable every year.

    1. Re:What's On The Drawing... by fm6 · · Score: 4, Insightful
      ...is NASA is doomed to repeat the shuttle experience again by using the new vehicles for the next 30 years without having anything new in the pipeline?
      Short answer: of course. The political situation that created the disastrous Shuttle is still in effect, only more so. Which is: politicians need to be seen to be backing manned space travel, but don't have any incentive to give it real funding. So NASA gets enough money to keep one manned space program going (barely!), and no more.
    2. Re:What's On The Drawing... by Anonymous Coward · · Score: 0

      What we need is NASA to get out of the vehicle design business and let the free-market industry come up with innovative designs to build, test and deliver

      Because you know, right now it's illegal for the free market to do that. The Lockheed X-33, the various CEV concepts, Scaled Composites' SS1 and LM/Boeing numerous launch vehicles simply do not exist. Of course, that's according to you.

    3. Re:What's On The Drawing... by bluGill · · Score: 1

      Compare cars of the 1970s to the cars of today. Even the best cars of then stack up badly to the best cars of today. Once in a while you need a complete redesign to take advantage of new technology. Ideally without the politics of course...

  13. Do We Have To Keep Carrying Our Fuel With Us? by DanielMarkham · · Score: 3, Insightful

    Seriously. Why are we still building giant fireworks? Couldn't a mass-driver work with new heat-resistant materials? Or those JP Aerospace guys with the blimps-to-orbit plan?
    Even the Space Elevator doesn't have this problem. Surely there are better things to do with the money to lower cost-to-orbit than building giant bottle-rockets. As long as we remain under the paradigm of taking our fuel with us, it seems to me the cost and complexity goes through the roof. My two cents only.

    NASA Budget Shows Shuttle Phase-Out

    1. Re:Do We Have To Keep Carrying Our Fuel With Us? by dabigpaybackski · · Score: 2, Informative
      Don't forget about these people. Skyramps were Werner von Braun's original idea for putting things into orbit. Arrayed against him were the USAF, who favored vertically-launched rockets because they could quickly be fired off in annihillating volleys at the Soviets, and probably the rocket manufacturers themselves, who stood to make far more money from vertical-launch than from von Braun's more efficient method.

      Check out the site. It's full of fascinating stuff.

      --
      "OH SHIT, THERE'S A HORSE IN THE HOSPITAL!"
    2. Re:Do We Have To Keep Carrying Our Fuel With Us? by pewterfish · · Score: 1

      I'll second that. Bigger, dumber rockets are emphatically NOT a solution to the orbit problem: the waste of engineering and resources is, frankly, disturbing.

      Better solutions have been suggested, but as yet no-one with any serious clout is willing to develop them. The Skylon project is currently trying to gather support from a consortium of aerospace companies, after being 'considered' by ESA.

      There appear to be ways of getting to orbit that don't involve carrying things up there only to throw them down again, but no-one is listening. Bit of a shame, really.

      --
      :D > £/$
    3. Re:Do We Have To Keep Carrying Our Fuel With Us? by everphilski · · Score: 1

      The difference is ... Big Dumb Rockets exist, they work, and they get the job done. Everything else is speculation until they can prove that they too can get the job done. Designing a new space program around technology that is nothing more than speculation, is nothing more than stupid.

      The problem with chemical propulsion is we are just on the cusp of being able to work it to get to space. If it were just a little less efficient, it wouldn't get us there no matter how much fuel you put in. If efficiency increased, our rockets would get much much smaller... but chemical energy is one of those things that are locked in to the nature of the chemical.

      -everphilski-

    4. Re:Do We Have To Keep Carrying Our Fuel With Us? by Anonymous Coward · · Score: 0

      That's the Saenger Orbital Bomber... good stuff.

      http://www.google.com/search?hl=en&lr=&c2coff=1&q= x-plane+saenger&btnG=Search
      www.x-plane.com

      enjoy ^-^

    5. Re:Do We Have To Keep Carrying Our Fuel With Us? by mpe · · Score: 1

      Don't forget about these people. Skyramps were Werner von Braun's original idea for putting things into orbit. Arrayed against him were the USAF, who favored vertically-launched rockets because they could quickly be fired off in annihillating volleys at the Soviets,

      You can just as easily use "skyramps" to launch missiles, as demonstrated by the Luftwaffe. The problem is that they can be more easily damaged by enemy attack than harderned silos.

    6. Re:Do We Have To Keep Carrying Our Fuel With Us? by Antique+Geekmeister · · Score: 1

      The short answer is "no". No one has ever built an effective mass driver: the technology is about as available as Star Trek transporters, and should be considered as likely to work until someone actually does the design and testing of even a small one for launching significant masses across a few hundred feet, much less launching to LEO.

    7. Re:Do We Have To Keep Carrying Our Fuel With Us? by DF5JT · · Score: 1

      "Skyramps were Werner von Braun's original idea for putting things into orbit."

      I don't know about you, but there is one thing I certainly don't even want to think about when going at Mach 3 on a jet sled: mechanical friction.

      There is only one way to *safely* launch a spacebound vehicle on a horizontal lauch pad: Magnetic rails.

      And *pooof* goes the "reduced cost" argument.

    8. Re:Do We Have To Keep Carrying Our Fuel With Us? by rsynnott · · Score: 1

      NASA has a laser launch system in very early development; that might eventually be useful. Alternatively, they could always resurect NERVA or the Orion Project, though Greenpeace would have a collective fit.

      --
      Me (Blog)
    9. Re:Do We Have To Keep Carrying Our Fuel With Us? by shadowbearer · · Score: 1


      Well, we've built and 'fired' them in the lab. The technology doesn't really require any breakthroughs, just the refinement of existing technology.

      It's true that building a large-scale one is currently out of our reach for the above-mentioned reasons; but the Navy is embarking on a huge project to develop them for armaments, and there will undoubtedly be spinoffs from their R&D.

      Star Trek-style transporters on the other hand require at least three major breakthroughs in theory, so that was a poor analogy :)

      Cheers,
      SB

      --
      It's old. The more humans I meet, the more I like my cats. At least they are honest.
    10. Re:Do We Have To Keep Carrying Our Fuel With Us? by linzeal · · Score: 1
      Not if you build it under the ocean off the coast or in a suitably remote and hidden place on the continent.

      What is it called when torpedos go supersonic?

    11. Re:Do We Have To Keep Carrying Our Fuel With Us? by Antique+Geekmeister · · Score: 1

      OK, Star Trek transporters ws hyperbole, but not by much. Building a large-scale mass driver is still wildly infeasible: the switching of large magnetic fields at high propagation rates has turned on to be far more difficult than anticipated when mass drivers were first proposed. Like computers that understand spoken English, the proof of concept is easy. Getting it to work has turned out to be a bear.

    12. Re:Do We Have To Keep Carrying Our Fuel With Us? by shadowbearer · · Score: 1

      the switching of large magnetic fields at high propagation rates

      Reminds me of fusion for some reason :)

      I do think that if serious money/brainpower/computer time is thrown at EMRs that we'll have one soon. The Navy certainly seems determined - and I find I agree with their reasoning... plus I like the idea of the tech propogation thru the space industry. Even if it isn't feasible to use a EMR to launch from Earth (and there are plenty of other difficulties there! :) at least we'd have it for any lunar base effort - and it's invaluable there. Launch costs are essentially what it costs to erect solar panels (well, lots of them :)

      wildly infeasible

      I'd not say that; rather I'd say that it'd be incredibly expensive and take, oh, about 5-10 years if we are really determined. There we enter the dreaded realm of politics :)

      But we can do it.

      Cheers!
      SB

      --
      It's old. The more humans I meet, the more I like my cats. At least they are honest.
    13. Re:Do We Have To Keep Carrying Our Fuel With Us? by peawee03 · · Score: 1

      I have no idea how much money maglev rails cost to run, but you only would need to build them once, as opposed to over-and-over again with conventional systems.

      --
      I wish I could write clever and witty sigs.
  14. No exploding parts? by oogoliegoogolie · · Score: 1

    Of course, they plan to leave the exploding parts out of their next versions

    The parts that explode are the fuel tanks, and without them the craft wont get very far off the ground. The exploding parts stay!

  15. Exploding bits? by FTL · · Score: 3, Interesting
    "Of course, they plan to leave the exploding parts out of their next versions."

    Erm, actually they are keeping the "exploding bits" and leaving out the bits that so far haven't exploded. The SDV will include the solid rockets (which doomed Challenger) and the fuel tank (which doomed Columbia). The only bit they are leaving out is the orbiter, which has so far has worked properly.

    Having said that, it is still an extremely good design. It's almost exactly what the Soviet Union built (separate Energia heavy lift and Soyuz crew vehicles). The only difference is the use of solid motors (which explains why the stock price of Thiokol's parent company has been going up like a, erm, rocket).

    --
    Slashdot monitor for your Mozilla sidebar or Active Desktop.
    1. Re:Exploding bits? by Anonymous Coward · · Score: 0

      Considering it needs retiled every launch and one of those supposidly INDESTRUCTABLE tiles on the leading edge of the wing was the cause of the reentry burn up of the orbiter (due to foam impact that they never TESTED PROPERELY IN THE FIRST PLACE), go figure.

      The only real way into space is to build large ships IN SPACE DOCKS and launch to them from here using a piggy back on a jumbp or some other powered flight type, wont that use less fuel rather than straight up combustion? Think star trek space docks. Its the only way for REAL space missions.

      The only way for cost effective missions and using the best tech is to have cooperation (something the US is never good at, wonder why.).

      What about lifter technology using high tension electricity to lift payloads into orbit?

      I think its time for a change from the status quo. They spend enough bloomin money on it, so lets get the best there is out of it.

      Its bloated rip off companies like Boeing and Lockheed Martin that are milking the money rather than giving the best. Thats all that matters, how they can fleece the contracts.

    2. Re:Exploding bits? by cheesybagel · · Score: 1
      If the orbiter was on top, rather than mounted on the tank, foam from the tank would not have hit the orbiter. So these designs fix that one.

      As for the solids, yeah, I agree. They should not be used for space exploration. They are mostly useful for military missiles, which need to be storable and fast to fire.

    3. Re:Exploding bits? by fermion · · Score: 1
      The first thing i thought of is that if they leave off all the exploding bits, we must be thinking of some revolutionary way to make it LEO. Perhaps maglav or a space elevator. Never underestimate those minds at NASA.

      But seriously, the current technology depends on the exploding bits. And, reaslistically, things that have been used a lot, perhaps have failed, and have been fixed, will tend to more reliable that designing something from scratch.

      So the key is can a failure mode be fixed. Challenge was realy a bone head accident, probably caused by bonehead high level official(outside of NASA), that do not understand anything more complex than keeping their mistress away from their wife. The issue that destroyed Culombia, I believe, is a more complex set of design flaws that are difficult to fix, but clearly depends on several levels of converging events. There are probably other issues like this.

      As mentioned, it is an extremely good design. What I have heard is the shuttle will be hard to justify as a human rated design. As such it will be reworked as a transport that is cargo rate. A new type of safer simpler transport will be human rated. Perhpas we will have a third rating in the middle, monkey rated, that will be reserved for the bonehead officials that believe space travel is merely a political expediency.

      --
      "She's a scientist and a lesbian. She's not going to let it slide." Orphan Black
    4. Re:Exploding bits? by Buran · · Score: 1

      And I think it possible that a top-mounted spaceplane might have survived the Challenger explosion as well -- it would have been thrown free (or blown free by the crew if they realized what was going on) and could have at least attempted a landing.

  16. Also, unlikely by appleLaserWriter · · Score: 1

    >>Of course, they plan to leave the exploding parts out of their next versions.

    >Maybe it's just me, but I didn't find that attempt at humor cute. It's in poor taste and I don't believe it was proper for a submission.

    Rockets are little more than controlled explosions. Take away the explosion, and you have a shuttle that sits on the pad and never goes anywhere.

    The problem is not to get rid of the explosion, but keep it under control.

    1. Re:Also, unlikely by georgewilliamherbert · · Score: 1
      Rockets are little more than controlled explosions. Take away the explosion, and you have a shuttle that sits on the pad and never goes anywhere.
      This is hyperbole. Rocket motors are just burning propellant, not detonating it. Burning it very rapidly, but it's just combustion.
  17. A bit offensive, don't you think? by dougmc · · Score: 0
    Of course, they plan to leave the exploding parts out of their next versions.
    I see that you've made a funny, but don't you think that it might be a bit offensive?

    Good job. It was somewhat funny *and* offensive, a rare combination in today's world.

    I suspect it's also inaccurate, as anything that goes into space is likely to have parts (hopefully small ones) that are supposed to explode as a regular part of doing their job, and lots of parts that could explode if something goes wrong. Hopefully nothing will go wrong ...)

    1. Re:A bit offensive, don't you think? by Anonymous Coward · · Score: 0

      Yes, damned offensive. Maybe the poster is too young to have witnessed the Challenger explosion, where we lost seven good people. But I'll never forget those twin contrails in the sky as long as I live.

  18. No 'exploding parts'? by nurb432 · · Score: 1

    Then how the hell is it to get off the ground? Some sort of antigravity levitation?

    Didnt know NASA was that advanced yet.

    --
    ---- Booth was a patriot ----
    1. Re:No 'exploding parts'? by uberdave · · Score: 1

      Nuclear power involves no exploding bits, and precious few bits that are at high pressure even.

    2. Re:No 'exploding parts'? by nurb432 · · Score: 1

      Last i heard, nuclear powered flight was still banned..

      Might have changed tho..

      --
      ---- Booth was a patriot ----
    3. Re:No 'exploding parts'? by uberdave · · Score: 1

      Yes, it's banned, but not for any particularly good reason.

  19. NASA to Buy Commercial Transport to ISS by FleaPlus · · Score: 4, Interesting

    Well, I've been trying to submit a story to slashdot over the past few days about a "parallel path" to government-built shuttle-derived that NASA recently announced, but I haven't had any luck. I've already had four or five variations on it rejected. Anybody have ideas on what might be wrong with the following submission?

    At a recent talk, Michael Griffin outlined NASA's plans for helping to generate a robust and competitive commercial market in orbital spaceflight. The speech and Q&A transcripts from the talk are available. In a move reminiscent of the US government kickstarting the early airline industry by purchasing airmail services, NASA plans on supplementing government-derived transport by purchasing cargo delivery services to the International Space Station from commercial providers, followed by crew transportation after the systems have proven themselves. Unlike traditional government contracts, sellers wouldn't see a profit before the services are delivered and the emphasis will be on actual performance instead of process and specifications. Aviation Week has some commentary on the announcement.

    1. Re:NASA to Buy Commercial Transport to ISS by Anonymous Coward · · Score: 0

      Here's what's wrong with it:

      It doesnt contain typos, silly jokes, or other inanity... and it's informative, coherent, and intelligent.

    2. Re:NASA to Buy Commercial Transport to ISS by Tuna_Shooter · · Score: 1

      Looks like a good submission to me. God knows who approves some of these idiot submissions... I know i've had a few good ones rejected also... so as time passes i just don't/won't submit anymore... and i just sit back and watch the lunacy at work. !!!

      --
      *--- Sometimes a majority only means that all the fools are on the same side. ---*
    3. Re:NASA to Buy Commercial Transport to ISS by vinlud · · Score: 1

      Anybody have ideas on what might be wrong with the following submission?

      You should rename yourself to 'Roland Piquepaille'

      --
      Repeat after me: We are all individuals
    4. Re:NASA to Buy Commercial Transport to ISS by bhima · · Score: 1

      You should submit it to technocrat. Let me know if you don't want to... I will

      --
      Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.
    5. Re:NASA to Buy Commercial Transport to ISS by FleaPlus · · Score: 1

      Sure, go right ahead. I don't have an account there yet, and I'm too lazy to create one. ;)

    6. Re:NASA to Buy Commercial Transport to ISS by bill_mcgonigle · · Score: 1

      Anybody have ideas on what might be wrong with the following submission?

      It makes a Bush appointee sound reasonable and perhaps even wise?

      Actually, there's too much content. I can read your summary and pretty much be done. Slashdot depends on the readers filling in lots of missing information that the submitter didn't include, people arguing about that, people trolling about THAT, then a bunch of other people moderating and meta-moderating that.

      == Page Views (revenue)

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
  20. So, to go forwards... by payndz · · Score: 4, Insightful
    ...it's necessary to go backwards. Expendable stacks and capsules rather than re-usable orbiters.

    On the one hand, I'm glad. The Shuttle has proved to be a horrible waste of money, a boondoggle of 1970s technology dictated by political pork and military paranoia rather than being designed for an actual specific purpose, and I'm glad it's going to be replaced.

    It's just a shame that the only way we can get people out into space seems to be with 1960s technology rather than 2000s. At least, under the current government-funded model.

    --
    You must think in Russian.
    1. Re:So, to go forwards... by be-fan · · Score: 1

      Without the government-funded model, we would never even have gotten into space. If corporations are anything, they are risk-averse.

      --
      A deep unwavering belief is a sure sign you're missing something...
    2. Re:So, to go forwards... by Jeff+DeMaagd · · Score: 2, Insightful

      It's just a shame that the only way we can get people out into space seems to be with 1960s technology rather than 2000s. At least, under the current government-funded model.

      Part of that is that the "older" aerospace technology is often so close to optimal that only tiny tweaks are needed to get improvements, and that massive changes are often far more costly than they get in return. This is especially the case with aircraft, and I am not surprised that it may be the case with spacecraft too.

      In reality, the basis for many designs and manufacturing technologies in use now hasn't changed much from their early inception. The mechanicals of current standard CNC milling machines aren't fundementally different from that of Eli Whitney's invention. Heavily improved, yes, but the fundemental concepts remain the same.

  21. They're leaving out what now? by Guppy06 · · Score: 1

    "Of course, they plan to leave the exploding parts out of their next versions."

    We're talking about rockets. They rely on exploding parts, otherwise they tend not to go anywhere.

    Unless NASA will be opting for nuclear power on these things (HA!), rest assured that the launch area will be heavily laden with "NO SMOKING!" signs.

  22. One word: "Never happen" by heroine · · Score: 1

    Good news: They want to reuse at least some of the immense investment made in the space shuttle and they want to build something bigger instead of smaller.

    Bad news: The glamour of having a real spaceship is going to dissappear.

    The stacked heavy lifter is going to be so expensive and so inflexible, only 1 launch is going to be possible per year, containing all the cargo for the entire year.

    The delta IV would have been a better match for the CEV. We old timers just have a lot of bad memories of solid rockets.

    The Atlas V, of course, depends on Russian engines. It won't meet the requirement of strategic access to space if Russia decides this
    female president stuff isn't for them.

  23. NASA = Need Another Seven Astronauts by Anonymous Coward · · Score: 2, Insightful


    relax, comedy is some peoples way of dealing with terrible events, ever heard the phrase i didn't know wether to laugh or cry, now you know

  24. Ensuring Quality at NASA by reporter · · Score: 1
    NASA should take a leaf from the bidding manual of the United States Air Force (USAF) and open up bidding for the next shuttle to both American and Japanese companies. All such companies would submit a proposal for the next shuttle and would use their own finances to build a prototype. Then, all the prototypes compete in aggressive endurance tests.

    The group of companies submitting the winning prototype will receive the bulk of the funding to build a fleet of shuttles. However, the group of companies submitting the losing prototype will be given some limited funding to build parts for the winning prototype. The aim is for the losing group of companies to recoup the loss in building their losing prototype.

    The USAF and the rest of the American military is already collaborating with the Japanese government, the Japanese military, and Mitsubishi in building the next-generation anti-missile weapon. There should be no problem in opening the NASA bidding process to Japanese companies.

    This competition will ensure quality. The F-16 and other jet fighters are damned reliable due to the competitive bidding process used by the USAF. In fact, the F-16 is so reliable that it serves as the baseline model from which the Japanese government derived its next-generation stealth fighter, the F-2.

    1. Re:Ensuring Quality at NASA by korbin_dallas · · Score: 1

      I'm not sure that helps at all.

      Here we have Boeing and Lockheed. Everyone else has been purchased by one of these 2 mega-corps. The F-16 would not have occurred under these conditions. It seems as if the large corporations have done themselves in by 'purchasing' everyone and everything and placing them in a 'BOX'.

      Innovation does not come from a BOX.

      The Japanese buy most of their rocket stuff from us(USA).

      I submit that the reason NASA got results 40 years ago was because they were 'doers' with a vision and a goal (a lifelong goal for Werner von Braun by the way), and that all these people were replaced by beaurocrats a long time ago.

      There is a serious problem with the way America does business and NASA is a glaring iceberg tip for anyone who really wants to investigate it.
      Might make a good book.

      --
      They Live, We Sleep
    2. Re:Ensuring Quality at NASA by Anonymous Coward · · Score: 0

      There's nothing really special about Japanese engineering firms compared to American/Germany/British, so I don't see how brining in the Japanese (opposed to say any other country) would be a benefit. Unless of course, they're the only other country willing to finance/actually do this.

    3. Re:Ensuring Quality at NASA by mpe · · Score: 1

      NASA should take a leaf from the bidding manual of the United States Air Force (USAF) and open up bidding for the next shuttle to both American and Japanese companies.

      Why Japanese companies? Wouldn't it be better to approach Russian companies, assuming that the idea is to build a manned spacecraft which dosn't kill it's crew.

    4. Re:Ensuring Quality at NASA by ThreeE · · Score: 1

      Russians don't know how to build anything anymore. They just keep dripping out old stuff that gets two people and maybe their shoes to LEO. Russians have never and will never leave LEO -- unless they buy a ticket from the US.

  25. Does not at all resemble the Shuttle by everphilski · · Score: 3, Interesting

    The vehicles being proposed do not at all resemble the shuttle. The shuttle itself is being scrapped. The solid rocket boosters, a modified external tank, and the Space Shuttle Main Engines (SSME's)

    The key difference between the new models and the existing shuttle is serial architecture versus parallel architecture. The Space Shuttle is an example of parallel architecture - all of the stages firing together. The new proposals operate in serial, one stage at a time. That's a lot safer: abort modes are easier to implement. A first stage failure is not immediately a fatal incident. Also notice they are implementing the CEV for the crew module, not a shuttle.

    And although the spaceref article and pretty pictures are new, the ideas/rumors have been floating around the Aerospace community for quite some time now.

    -everphilski-

    1. Re:Does not at all resemble the Shuttle by cheesybagel · · Score: 1

      The most expensive and time consuming item to design in any launcher are the engines, by far. By keeping the same engines in use, they are reducing cost and time to entry in service.

  26. Shuttle by Anonymous Coward · · Score: 0

    A re-usable vehicle that could take off from space, go into orbit, dock w/ space stations, etc., and then land back on earth is well within our reach technologically
    You mean like the space shuttle?

    1. Re:Shuttle by itronic · · Score: 1

      The shuttle is not 100% re-usable. It loses its boosters on the way up. SpaceShipOne came back in one piece.

  27. Well, sorta by Chmcginn · · Score: 2, Interesting
    The Space Shuttle orbiter weighs in at a whopping 104,000 kg! Combined with its cargo capacity, the Space Shuttle is capable of 132,800 kg to LEO! That's way more than the Saturn V could manage on all three stages. So if we ditch the orbiter itself, the shuttle's infrastructure could be the most powerful superbooster ever designed.

    You're leaving out the fact that a portion of the engine is built into the orbiter. I'm not sure exactly what it masses, but I'd take a guess it's bigger than the difference between 118,000 kg and 132,800 kg.

    On a totally unrelated note, why don't we use the rest of the metric scale when dealing with really big stuff?

    --
    Have you been touched by his noodly appendage?
    1. Re:Well, sorta by cheesybagel · · Score: 1
      Here ya go:
      Block II Space Shuttle Main Engine weight 7,774 lb

      Now using Google Calculator:
      7 * 7774 lb to kg = 24 683.5896 kilograms

      So yeah, it is a bit more, but not that much.

    2. Re:Well, sorta by cheesybagel · · Score: 1

      Duh! 3 SSME engines on a Shuttle, not 7. Using Google Calculator correctly this time: 3 * 7774 lb to kg = 10 578.6813 kilograms (132 800 kilograms) - (118 000 kilograms) = 14 800 kilograms So yeah, it is a bit more, but not that much.

  28. exploding by Anonymous Coward · · Score: 0

    Of course, they plan to leave the exploding parts out of their next versions.

    But those were the pretty parts!

    Everything else the shuttle does is kinda dull :(

  29. Laser launch, for example. by NRAdude · · Score: 0

    The easier, more exotic, load delivery mechanisms can be used only if the load is little. I thought no less than someone spreading all their value over many small successive launches than risk one heavy/expensive launch. It also appears that the cost of launching heavier objects into space will increase exponentially by weight! There is much development on laser-launch systems. I was looking for the earlier Slashdot article on laser technology, yet this webpage is just an independent collection of information regarding alternatives and does show some URLs for laser content.I don't see any shark stickers, so its troll safe.

    Lightcraft Technologies, Inc. is a commercial venture.
    Adrew V. Pakhomov appears to profess on the subject, and a host of a symposium.

    --
    without prejudice
  30. I'm glad... by zogger · · Score: 1

    ...someone else brought this up. The military has advanced flying craft. Too many eyewitnesses and little leaks to ignore now, their denials are ludicrous. The stuff we see, and that they admit to owning in public, is the dumbed down three (whatever) generations old stuff. Now whether or not they have direct to orbit and back again craft, not sure, but I wouldn't bet against it. Space-the high ground-has always been a military endeavor first, they just sold some of the aspects of it to the public as a "civilian" effort.

  31. It would be no different in time of assembly. by NRAdude · · Score: 0
    Suppose that the way you got a new automobile was by having it mailed to you in 50 pound packages. It is probably possible to get cars this way, but the cars would be very different from the cars we have now --- heavier, slower, less fuel efficient, leaving a rather larger trail of (packaging) debris, and a few specialized tools, that would be useful for nothing else. Such cars would probably have no welds for assembly, and manufacturing techniques which required hazardous chemicals or heat processing would simply not be available. The lesser performance would arise from the "design for assembly" which is rather different from "design for manufacturability." (If the 50 pound limit was enforced, there would be no monolithic engine blocks; this would probably imply the existence of many small engines coupled together with a complex, heavier, transmission.)
    How do you suppose they receive all the parts to assemble at a factory? :D Also, I can say that a local bicycle shop receives its parts complete in 10-pound packages, with one large box for the bicycle frame, and a round box for the rims, tires, spokes, and axles. It depends how complete you expect the asssembly to be. I've assembled two cars in my lifetime; one was a Ford Continental and the other was a homebrew no-brand American that I welded together. There realy isn't much to cars. All of the difficult and heavy parts are for comfort and trend. I've yet to see a truly efficient car outside of the consumer factor. Best example is an open-cab wagon, or a Jeep brand car.
    --
    without prejudice
  32. Simple Answer; Costs and Politics by WindBourne · · Score: 1

    It costs money to build these things. In addition, it requires that politicians look beyond themselves and look for the long term solutions for USA. GWB killed X-33 before it flew (supposedly, but time will tell).

    Reagan, Poppa Bush,and Clinton pushed the ISS. ISS may be a nightmare, but it also started other nations AND our private enterprise thinking about how to get to space. In addition,the bigilow space station was actually designed by NASA during clinton's time. It was suppose to be the next ISS. GWB had NASA sell all rights to Bigelow. Hopefully that will go places.

    But for now, NASA needs a low-cost, reliable way to get to space and move on to where others will not go (mars and moon). The SME and SRB really are the nice inexpensive ways to do this. Let others design newer single stage, or better the space elevator.

    --
    I prefer the "u" in honour as it seems to be missing these days.
    1. Re:Simple Answer; Costs and Politics by icebones · · Score: 1
      Reagan, Poppa Bush,and Clinton pushed the ISS.

      Actually Reagan and Bush Sr. pushed space station Freedom and it was very close to being ready to launch when Clinton came into office and trashed it in favor of the ISS, and I do mean trashed. I had a Prof. in college who's life's work was Freedom and he told us that they literally were throwing out Freedom and starting over from scratch. We would of had a completed station long before now if not for Clinton's desire to make sure that it was an international space station and not a US one.

      --
      Life is pain. Anyone who says differently is selling something.
  33. Re:Vehicles only to look like shuttle on the outsi by Anonymous Coward · · Score: 0
    After all this waste, we go back to non reusable heavy lifting and deorbiting like a stone.
    And rightly so. The Russians have certainly shown us how true the old line of "if it ain't broke, don't fix it" is. The Proton rocket and Soyuz capsule are tried and true, if old.

    Apollo I and XIII aside, the system worked pretty well. If reimplemented today, we'd naturally see evolutionary changes (new composite materials, significantly better and smaller computer systems, structural improvements thanks to modern computer simulations). We might not have room for 10th grade biology projects, but I think that's an acceptable loss.
  34. Re:Vehicles only to look like shuttle on the outsi by voidptr · · Score: 1

    And rightly so. The Russians have certainly shown us how true the old line of "if it ain't broke, don't fix it" is. The Proton rocket and Soyuz capsule are tried and true, if old.

    American Space Progam Casualties: 17 (20 if you count the Apollo T-38 training accident)
    Soviet Casualties: 150+

    --
    This .sig for unofficial government use only. Official use subject to $500 fine.
  35. Girls of NASA by Anonymous Coward · · Score: 0

    Better 15 years late than never, I suppose. NOW, if they can just make the entire bloody thing re-usable, instead of dropping off a gas tank in the Indian Ocean and a pair of boosters in the Atlantic, it'll be a halfway decent setup. Fuel is fuel, and for launches it just doesn't get any better than hydrogen until you start using some other form of propulsion (as opposed to the current combustion method).

    Next on the agenda, we need Playboy to run a "Girls of NASA" issue...

  36. This isn't FARK, leave the crude headlines to them by ayeco · · Score: 4, Insightful

    Please, have a little respect. The "exploding parts" comment in the headline was uncalled for and childish.

  37. Re:first fuck by Anonymous Coward · · Score: 0

    In Sovjet Russia, Rubber used you.

  38. That makes your "Dad" a dyke. by Anonymous Coward · · Score: 0

    There I thought, hmm...impregnated by a rubber (dildo)? These lesbians sure hate males, but want to be more like them. Do they actually load their dildos with male sperm to better simulate reproduction in a lesbian relation?

    Egads, sheman!

  39. Re: already been done by Anonymous Coward · · Score: 0

    Look at Russian Energia booster system and their shuttle Buran. Buran rode Energia piggyback into space. Energia can fly without the Buran to lift payload into space.

    IMO, NASA should just buy the program. Too bad they won't though; clasic 'not invented here'.

    Fran

  40. Terrible idea! by RayBender · · Score: 1
    This is so disappointing it makes this dyed-in-the-wool space enthusast want to embrace the Flat Earth Society. I hardly know where to begin:

    1) we're reusing the solids which have already killed one crew, and which are neither cheap, reliable, efficient nor reuseable. A single shot of this new vehicle will be at least $100 million - 5 times what a Soyuz ride goes for.

    2) We're reusing the SSME engines, which are the latest 1970's technology. They have a decent specific impulse, but are very expensive to keep running. But worse yet, we're putting them on an expendible booster, so we'll have to keep building new ones. We spent the money to develope a reusable engine that we will then discard after one shot. That was dumb. Besides, haven't there advances in materials technology since the 70's that we could use to make a better engine?

    3) We subsidized Boeing and Lockheed-Martin to the tune of many billions so they'd each build a family of boosters. They did so, and now we're removing the largest market for those boosters. Good luck ever trying to get an aerospace company to invest in development in the hope that NASA will provide a customer.

    4)We're apparently giving up on the idea of reusable spacecraft entirely - this means that space will NEVER be economically worthwhile. It's pissing-contest stunts from here on out, forever, folks. Sooner or later people will get bored and kill funding, and that's the end of a future in space.

    5) The biggest problem is simply that there is no investment in the future with this approach - it's "slap together what we already have for the least short-term cost, and get something that will make it to Mars ONCE. Never mind the fact that it will never be sustainable." We're not developing any new rocket technology, any new structural materials, any new payload handling or vehicle fabrication technologies, no new energy sources (nukes in space).

    6) In order to achieve even this pathetic approach we're gutting most of the very exciting, successful unmanned sciene that NASA is so very good at. For what? A fscking flag on Mars that will never be seen again by anyone coming back.

    --
    Human genome = 3 billion base pairs = 6 GBit. Windows + Office = 20 Gbit. Which is more impressive?
    1. Re:Terrible idea! by RayBender · · Score: 1
      why does it have to be reusable to be economical, seems the other way around.

      Simple really: a space vehicle is always going to be expensive to build - you have very stringent quality controls and tolerance requirements, as well as exotic materials and complicated fabrication procedures. A reusable vehicle should allow you to amortize that construction cost over many flights. Imagine how much it would cost to fly from Boston to LA if they threw away the 737 after every flight.... And a 737 is a lot less complicated than a space launcher.

      You might argue that making it disposable would cut costs, but that would only be true if it allowed you to build a much simpler vehicle. Which is not the case - it always has to withstand high loads, be built very light-weight etc etc. Some people are trying this, but it isn't going to work out for them.

      --
      Human genome = 3 billion base pairs = 6 GBit. Windows + Office = 20 Gbit. Which is more impressive?
    2. Re:Terrible idea! by FleaPlus · · Score: 1

      Simple really: a space vehicle is always going to be expensive to build - you have very stringent quality controls and tolerance requirements, as well as exotic materials and complicated fabrication procedures. A reusable vehicle should allow you to amortize that construction cost over many flights. Imagine how much it would cost to fly from Boston to LA if they threw away the 737 after every flight.... And a 737 is a lot less complicated than a space launcher.

      That logic may apply in the future, but it doesn't apply today. When you look at the something like the space shuttle or just about any other launcher, construction costs aren't the largest cost component. Rather, paying the standing army of workers, needed to get the system ready and check/repair it between launches, is the most expensive part.

    3. Re:Terrible idea! by Anonymous Coward · · Score: 0

      You might argue that making it disposable would cut costs, but that would only be true if it allowed you to build a much simpler vehicle. Which is not the case - it always has to withstand high loads, be built very light-weight etc etc. Some people are trying this, but it isn't going to work out for them.
      Why not? WTF do you know that Elon Musk and his team of highly skilled (and so far thoroughly successful) engineers don't?

    4. Re:Terrible idea! by RayBender · · Score: 1
      When you look at the something like the space shuttle or just about any other launcher, construction costs aren't the largest cost component. Rather, paying the standing army of workers, needed to get the system ready and check/repair it between launches, is the most expensive part.

      What about the standing army needed to build your expendibles in the first place? Then the tasks are even more complicated, because you're building something new every time, rather than just toppping off fluids and kicking the tires... NASA procedures shouldn't be taken as an example of the best (cheapest) possible practice; the incentives are different, so they haven't really tried to work towards a low-cost reusable system. If anything, the incentive at KSC is for a higher cost system - more jobs make for happy congressmen.

      --
      Human genome = 3 billion base pairs = 6 GBit. Windows + Office = 20 Gbit. Which is more impressive?
    5. Re:Terrible idea! by RayBender · · Score: 1
      WTF do you know that Elon Musk and his team of highly skilled (and so far thoroughly successful) engineers don't?

      Not that thoroughly successful yet. Talk to me when they've flown. Not to mention that even they don't claim their vehicle will be that much cheaper (the cheap flights are supposedly the Falcon V, which is pretty far from ready as far as I can tell).

      --
      Human genome = 3 billion base pairs = 6 GBit. Windows + Office = 20 Gbit. Which is more impressive?
  41. Re:Vehicles only to look like shuttle on the outsi by cahiha · · Score: 1

    Nobody said space exploration had to be safe; after all, for all previous manned exploration activities, we accepted high risks of death. Why should modern space explorers be such wimps?

    Besides, your comparison is meaningless. The Soyuz system may well be the safer design, but accidents may be due to cheaper materials. Furthermore, what's the total number of manned launches of each nation?

  42. GWB by Anonymous Coward · · Score: 0

    Actually, Bush had nothing to do with the X-33's cancellation. NASA officials at Stennis decided not to fund the X-33 anymore after the failure of the composite fuel tanks. It's a bit crass of you to assume Bush caused everything unsavory in the scientific world.

    1. Re:GWB by Anonymous Coward · · Score: 0

      Actually, Bush's admin put all sorts of pressure on top NASA people to drop it. It had absolutely NOTHING to do with stennis. Stennis tested the engines. That is all they do there.

      It seems as though /. is turning into a Bush apologist site, loaded with all sorts of re-writing history. No doubt people like you will be trying to state that Bush's people actually did capture Saddam with a nuke.

  43. seems rather complex by cahiha · · Score: 1

    The whole approach looks rather complex and costly. What's wrong with 60's and 70's technology? It looks to me that anything developed since has been much more expensive and has had less capacity.

  44. Look to Private Enterprise for Space Sex... by 7Prime · · Score: 2, Interesting

    Ok, so I'm probably not the only one here who's dissapointed in finding that NASAs next big plan looks and sounds really BORING. But if we're really serious about space exploration, then what's most important is what it can do to further that progress, not how it does it. Now, my big gripe is that "progress" itself doesn't seem all that important in this design as Congress keeps whining about space program employment and timeline crunches, but if this is the quickest and cheapest way to improve the space program, I'm all for it. It'll be the plan that probably gets humans to mars, after all... probably late in it's lifetime (probably no sooner than 2025, I forget the timeline).

    But strangely enough, it looks like R&D for new space technologies is on the backburner at NASA to fund the actual program, while new private enterprises such as SpaceShipOne and LiftPort research and develop contemporary technologies that can achieve things like reusable, horizontal takeoff space planes and the space elevators. Problem is, the last 30 years have seemed to be fairly unproductive in terms of designing new space transportation oriented technologies. There have been numerous "space plane" projects, yet none of them have been able to produce a viable plan that is both doable and cost-effective. So, it's no wonder that NASAs cheepest solution is to basically make a new plan that simply reuses older technologies. That said, with the new companies mentioned, as well as many more in their early stages, this next generation of space transportation will see a much higher amount of R&D. Come 2040 (or whenever the new space shuttle fleet retires), there will be much more new space transportation technologies for NASA to steel. Until then, it looks like sexy spacecraft are more destined for private enterprise.

    BTW: reading up on the concept of a "Space Elevator", the implications of such an installation are immense. I'm picturing a private enterprise like LiftPort completing one by 2020. Suddenly NASA turns around and realizes that they can completely skip earth to orbit spacecraft and scrap their current fleet to create space-specific craft which are more fuel efficiant than airplanes. Whoops! Leave the bottle rockets to kids.

    --
    Multiplayer Gaming (defined): Sitting around, discussing single-player games with my friends, at the bar.
  45. Upward compatible means that we get to keep... by alita69 · · Score: 2, Interesting

    ... all of our old mistakes.

    Horrible, horrible idea. They're taking two of the three worst components of the current shuttle platform and reusing them in a system where we have already made and used much better systems. The only way they could make it worse is to rely on the current shuttle thermal tiling.

    So, lets look at the other two pieces. SRBs? They killed Challenger. They've never worked properly, or we wouldn't have been getting blow-by as routine. If NASA is insisting on sticking with solid fuels, for whatever odd reason, they need to make them non-segmented (although there are other practical problems here that would have to be solved). Increasing the segments to five is just going to make the problem much worse, since the joints are the weakest part of the system, which means more losses.

    Then we've got the SSMEs. Good ISP, fine, but the mechanical problems are still around. We've never, ever been able to get these to work the way we wanted them to. NASA just keeps moving the "acceptable" bar every time a new problem is found. They need a complete redesign to get rid of the problems we do know about (that's what top-down design gets you), but that'd be far too expensive. If we want to stick with old tech, we'd be much better off just remaking the tools for the Saturn V engines and restarting production.

    If this memo at all reflects NASAs future actions, then they'll have proven themselves irrelevant. Unles the US government decides to try out a bounty system, and offers appropriate (ie. billions) numbers for good systems, we're out of the race. Maybe someone else will be able to keep going.

    Alita
    "Cutting the space budget really restores my faith in humanity. It eliminates dreams, goals, and ideals and lets us get straight to the business of hate, debauchery, and self-annihilation."
    -- Johnny Hart

  46. The HLLV was in the original shuttle design... by argent · · Score: 2, Interesting

    The original shuttle design was going to have the shuttle itself only used for lighter payloads, with the HLLV doing the, well, heavy lifting. There was also going to be a permanently orbiting vessel for inter-orbit transfers, using something like an ion drive... basically, the original shuttle design was going to be lighter and more reliable and just one member of a fleet of specialised vehicles. Congress wouldn't pay for all of them so NASA scaled up the Orbiter and it ended p costing more and doing less than originally planned.

    Man, I hope they let NASA do it right this time. If they reduce the weight of the new shuttle so the SSME don't need to run over redline just to do their jobs, maybe they won't have to rebuild it after every flight like it was some damn MIG engine... and if the HLLV doesn't need to be man-rated they can use a less expensive version of the SSME in it and save even more.

  47. Its like 1987... by Wyatt+Earp · · Score: 1

    I don't have the time to find it now, but I swear this plan is straight out of the Congressional Reports for follow on to the Shuttle unmanned systems in the late 1980s following Challenger.

  48. The irony is.... by Chmcginn · · Score: 1
    And what's even sadder is apparently I'm not even allowed to say I think something is in poor taste without assholes like you and some others acting like I just am some ulta-offended, always PC, yuippity up.

    Now he acts offended.

    --
    Have you been touched by his noodly appendage?
  49. The devil you don't.... by PHAEDRU5 · · Score: 1

    Better to kill your astronauts in the devil you know, than

    --
    668: Neighbour of the Beast
  50. Re:Vehicles only to look like shuttle on the outsi by Waffle+Iron · · Score: 2, Interesting
    Soviet Casualties: 150+

    Over 100 of those was due to a single incident in 1960 which was actually an ICBM test, not a general-purpose space mission. Under extreme pressure from the top government ranks to keep the cold war test on schedule, safety regulations were ignored while frantic launch preparations were made on a fully fueled missile. Somebody accidentally made an electrical connection that ignited the second stage, which engulfed the ground crew in fire.

    That singular incident really doesn't have much to do with the current statistical safety of manned space flight.

  51. Not all launch vehicles will look like the shuttle by uncoveror · · Score: 2, Funny

    Not all of NASA's upcoming launch vehicles will look like the shuttle. The X-4000 Launch Aparatus will resemble a giant catapult.

    --
    The Uncoveror: It's the real news.
  52. Re:This isn't FARK, leave the crude headlines to t by Anonymous Coward · · Score: 1, Funny

    Hey, you left out "hilarious".

  53. Titanium frame instead of aluminum? by antispam_ben · · Score: 2, Interesting

    I haven't checked this out, but a Usenet poster said the original Shuttle frames were going to be built out of titanium, of course for its great strength-to-weight ratio. There was a decision to switch to aluminum, supposedly both as a cost savings on the Shuttle manufacturing, and because there was great demand for titanium in building US Military aircraft. Due to the extra weight of a same-strength frame made of aluminum, two solid-rocket boosters needed to be added to the launch vehicle which were not a part of the titanium design.

    Is this true?

    Regardless, it seems clear that any launch hardware intended for reuse should be made of the best strength-to-weight materials available even at larger initial cost, so either there's less energy (the fuel itself is rather cheap, but less of it means smaller launch vehicles, fewer complications, fewer SRB's, etc.) required to launch, or a larger payload could be put into orbit with the same launch energy because of the lighter hardware.

    --
    Tag lost or not installed.
    1. Re:Titanium frame instead of aluminum? by Buran · · Score: 1

      Nope, not true. The orbiter can't get off the ground on its own without the assistance of some kind of booster. It can keep going on its own to orbit, once it's off the ground and 'started', hence the boosters are cast off only two minutes into the flight. The boosters don't have to be solid, or even segmented, either -- monolithic solids were investigated (and should have been used; they weren't for political reasons) as were liquid boosters.

    2. Re:Titanium frame instead of aluminum? by cmowire · · Score: 1

      The SRBs were added because of weight and feature growth that they were unable to spend their way out of in general. A Titanium frame instead of Aluminum frame is only one part of the problem. Things like the larger cargo bay, larger wings for crossrange, etc. also contributed.

      Furthermore, there's some general bad decisions. Some folks feel that the aerodynamic costs and development difficulties of having a HUGE hydrogen tank weren't worth it and we should have gone for using Kerosine instead. And they kept tweaking the same design without examining if it would have been better to scrap the whole design they had and start over with a better idea of what they needed.

  54. Re:NASA SLASHDOTTED by Tolookah · · Score: 1

    I am quite amused that you replaced the line
    "The second stage will have a liquid engine capable of restarting multiple times. The payload will sit atop this second stage inside a large aerodynamic payload shroud."
    with
    "The second stage will have a liquid engine capable of orgasming multiple times. The payload will sit atop this second stage inside a large aerodynamic payload shroud."
    bold emphasising the change...

  55. Resemble Shuttles? by Anonymous Coward · · Score: 0

    Lemme get this straight. The diagrams in the article feature no craft covered with tiles, wings, or any side-mounted craft at all. And that resembles the shuttle? Nuts to that.

    Hopefully NASA will waste its money on crafts that will take crewmen into much higher earth orbits instead of two week jaunts into the very edge of the atmosphere. Better yet, just pare down NASA and send people out into space when there's a compelling (much less economically justifiable) reason to do so. Given a choice between saving the money I normally have to pay to the IRS and going to Mars some ten or more years from now, I choose the former.

  56. I read that as by imthesponge · · Score: 1
    "some sort of antigravity legislation"

    I.R. Baboon beat you to it.

  57. See that? by ryanov · · Score: 1

    Looks like someone at NASA was listening last week when someone here said that there should be a less safe and more bang for the buck cargo vehicle and a safer and more involved, launchwise, manned vehicle.

  58. No exploding bits? by fbg111 · · Score: 1

    Of course, they plan to leave the exploding parts out of their next versions.

    Too bad, I guess it will never even get off the ground then...

    --
    Flying is easy, just throw yourself at the ground and miss. -Douglas Adams
  59. Re:Model T sighted on road last week by Anonymous Coward · · Score: 0

    Don't know if this has any bearing on the topic,
    but I saw a beautiful model T driving along
    the side of Lake Roosevelt in Washington last
    week. It struck me how far mobile transport has
    come in 100 years and also how much is still
    the same. The "T" was cruising along at a
    good clip, as fast as me and the occupant
    was surely enjoying the ride. Still have
    4 wheels, steering wheel, internal combustion
    engine, wind shields, ...

    I for one am glad to see them going back to a vertical stack. If I were riding on the thing, then that's what I would want. Keeping a production line going that makes steady improvements over time also seems like a good idea to me. Nothing quite like forgetting
    how to build something...

  60. Odd by Anonymous Coward · · Score: 0

    Neither I nor the history books remember it that way. In fact, I talked to some of the very people who were on the project (freedom and ISS) and they told me that moving it to ISS was more of a PITA for dealing with the new found politics, than anything else. And they said that the russians brought a lot to the table.

    In fact, if you check here, you will find it is still the same craft.

    1. Re:Odd by icebones · · Score: 1

      All I can say is my Prof was working on Freedom and told us this. BTW: your link doesn't mention a thing about it. you might want to double check it.

      --
      Life is pain. Anyone who says differently is selling something.
  61. In dude's defense... by Chmcginn · · Score: 1

    He said nothing about where or what he did when he served. He could have been a cook in the Navy or a mechanic in the Air Force.

    --
    Have you been touched by his noodly appendage?
  62. Russians by Mark+of+THE+CITY · · Score: 1

    Saying the Russians "don't know how" isn't really true. What they lack is cash to establish and keep an effective industrial base. Without that, an engineering education isn't worth much.

    --
    The clearance system sounds logical. It is not. It is completely arbitrary. -- John Bolton
  63. Re:first fuck by Anonymous Coward · · Score: 0
    A mother implies giving birth. In most cases that implies at least one "fuck" to impregnate prior. If you had the "first fuck", you by defination would have to be... Dad..?

    1) In most cases? You don't still believe that fable caused by translation issues?

    2) Despite what your idiotic "abstininence only" high school program teaches, a girl does not always get pregnant the first time she has sex. Yes, it is possible she will, even if she is on the pill and he wears a condom; however, it's also possible for her "first time" to be a six hour orgy right before ovulation in her cycle, and for her to still not get pregnant. Either one is unlikely, mind you, but the first fuck does not have to be Dad be definition.