Slashdot Mirror


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.'"

20 of 205 comments (clear)

  1. 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?
  2. 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...
  3. 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 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.
  4. 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.
  5. 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.
  6. 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

  7. 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.

  8. 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.

  9. 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 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.

  10. 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

  11. 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.

  12. 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.

  13. 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''

  14. 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.

  15. 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.

  16. 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.

  17. 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.