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Alternative Orion Missions Proposed

skywatcher2501 writes "Lockheed Martin, the company producing NASA's new Orion spacecraft, published three videos (news article in German) showing alternative Orion missions. Great efforts are made to show Orion's flexibility as a space transportation system beyond the goals of the Constellation program." The three videos, respectively, illustrate ISS missions with cargo in low-Earth orbit; autonomous use of the service module; and maintenance missions from low-earth orbit to geosynchronous orbit.

18 of 137 comments (clear)

  1. Maintenance in GEO would be pretty useful by localroger · · Score: 4, Insightful

    I always thought it was kind of stupid that our premier post-Apollo launch system couldn't get beyond LEO. Maintenance of GEO sats would probably be more useful than putting more footprints on Luna in terms of short-term returns.

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  2. Pick a new name assholes by SBrach · · Score: 3, Funny

    Every time I see an Orion story I think project Orion. Actually don't pick a new name, just scrap Constellation and bring back the real Orion.

    1. Re:Pick a new name assholes by wizardforce · · Score: 4, Insightful

      The real Orion unfortunately can't exist due to the cold war era treaty banning nuclear tests in space. Orion based on closed nuclear reactor designs on the other hand may do the trick. Even using a decent sized reactor to power either plasma or ion engines would likely get around the treaty restriction.

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    2. Re:Pick a new name assholes by Kratisto · · Score: 4, Interesting

      Ion engines would be impractical for a launch system, since they don't function in an atmosphere. I imagine that the vast majority of fuel used by a rocket is used escaping from Earth's gravity, rather than outside of the atmosphere where ion drives are viable.

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    3. Re:Pick a new name assholes by Atlantis-Rising · · Score: 4, Informative

      Project Orion was certainly designed for planetary launch. They even did an analysis of how many people it would kill per launch due to fallout.

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      "It is possible to commit no errors and still lose. That is not a weakness. That is life." -Peak Performance
    4. Re:Pick a new name assholes by Nyeerrmm · · Score: 3, Informative

      Its a little more complicated than that. The reason you use a lot more fuel to get out of the atmosphere than you use once you make orbit, even on interplanetary missions, is that you've got to carry all that fuel with you out of the atmosphere.

      Spacecraft sizing is like a Russian nesting doll. If you required a 4:1 ratio of propellant to spacecraft mass to get to the moon, and you were able to reduce it to 2:1 propellant ratio, you could get away with about half the launch vehicle because you don't need to launch all that propellant. The equations defining this (Tsiolkovsky's rocket equation) are all exponential with Delta-V.

      Now as you can imagine, doing a return trip is even harder... imagine a Mars sample return mission. You have to have enough fuel in Martian orbit to get your sample and re-entry vehicle from there back to Earth. You have to have enough fuel on the surface to get that fuel and the sample into orbit. This means you have to send all of that fuel to the surface in the first place (requiring more for the entry burns), and of course this defines the amount of fuel required to leave Earth and get to Mars, which in turn defines the size of the initial launch vehicle. Minimizing one of the steps is enough to fit the mission onto a much smaller LV. This is why concepts like using ion engines, leaving return vehicles in orbit (like in Apollo), and extracting fuel from the target (ISRU) are so important, even though the amounts of propellant are small compared to the initial LV.

    5. Re:Pick a new name assholes by fredrik70 · · Score: 3, Informative

      according to this site. you're correct. I quote:

      "In the early 1960s, Freeman Dyson estimated that each launch from Earth would cause, on average, 10 fatal human cancers among the population of the entire planet (some people argue that these figures may be an over estimate because of the particular mathematical model used). "

      From what I recall from the Project Orion book, they managed to get the estimated death down a bit, but still. A solution would be to only use the orion drive while in space, and only when outside earth's van allen belt as the magnetic field would drag some of the fallout back to earth.

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  3. Re:Welcome to the Moon! by jamstar7 · · Score: 3, Informative

    As much of a fan of NASA as I am (and have been, since the mid-70s), I am seriously beginning to doubt the agency's ability to get back into the business of taking big trips. Even if NASA gets us back to the moon, we're likely to be greeted by the Chinese, or some commercial operation's management (welcome to Bigelow at Tranquility!).

    It seems almost silly to be developing a return to space program, when commercial space is doing the same thing, for less money, and is closer to actually ACHIEVING it.

    Funny you should mention this. Per this source, American manned space flight is in serious doubt. If true, I'd say even unmanned American space flight is in jeopardy as well. Why buy space toys when you can buy votes?

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    Understanding the scope of the problem is the first step on the path to true panic.
  4. Re:Maintenance in GEO would be a game changer... by mikelieman · · Score: 4, Interesting
    If you can maintain satellites in GEO, you can BUILD satellites in GEO. Hello Space Based Solar/Beamed Microwave, and We Win The Game! Pournelle has written extensively on this, e.g.:

    Prizes reduce market uncertainties by providing a floor. If the US were to offer a $1 billion prize for the first American company to fly a ship to orbit and bring it home 6 times in one year, we would probably have reusable space ships within five years, possibly sooner: a billion is a pretty good market incentive. And if the US were to offer $10 billion prize for the first American company to put 31 Americans on the surface of the Moon and keep them there alive and well for 3 years and a day, we would have a Lunar Colony within 7 years and probably sooner.

    The neat thing about prizes is that we spend no money unless someone wins.

    --
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  5. Recycled Rocketry by DynaSoar · · Score: 3, Interesting

    A relevant piece of a recently submitted and rejected article on lessons from post-Apollo to Orion/Constellation. There were many suggestions on Apollo derivatives and follow ups, but only Skylab and Apollo-Soyuz made the cut. Many more could have flown. That fact in itself is a valuable lesson -- build for adaptability.

    "With the Apollo 11 lunar landing nostalgia wave over, and the ongoing discussions about keeping, changing or abandoning designs and plans for Constellation, the new Ares rocket and the very Apollo-looking Orion crew vehicle, it is interesting to examine the development, evolution (including evolutionary dead ends) and the many never-were projected possibilities for the Apollo and Saturn components. Encyclopedia Astronautica offers a feast of details about Apollo developments, both successes and failure, in The Apollo Development Diaries http://www.astronautix.com/articles/apoaries.htm . Plans for the vehicles were later not so much lost as is claimed now, but were abandoned as unfeasible, unnecessary, and in the cases of some such as the high jumping Lunar Leaper and slithering Lunar Worm vehicles, just too weird http://www.astronautix.com/craftfam/apollo.htm .

    As for the actual Lockheed Martin piece referenced in TFA, it's pure PR. But since they feel the need to waive their flag, perhaps there are rumbles from within NASA that they might consider alternatives.

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    "I may be synthetic, but I'm not stupid." -- Bishop 341-B
  6. Re:Welcome to the Moon! by QuantumG · · Score: 4, Insightful

    Uh huh. The news reporting on the HSF review committee has been horrid. The committee has the duty of reporting the options to Congress and the President. Some of those options are affordable, some of them are not, and doing all of some of them isn't affordable either. The mouth breather journalists don't understand the discussion so they latch onto the word "budget" and write a the-sky-is-falling article.

    The cheapest option, that no-one is considering btw, is to just give SpaceX the $300m for crew transfer to LEO that they were promised and wait 2.5 years, then pay $20m/seat.. if you want to spend a little more, buy seats from the Russians at $53m/seat. If you want to spend a little more, keep flying the shuttle beyond the current manifest (and hope it doesn't explode). If you want to placate your international partners, keep flying the ISS until 2020, by then it'll be completely unusable, but hey. And after doing *all* that you'll have some money left over to launch an unnecessarily large capsule towards the Moon. But just forget about Mars for now because we don't have the skill or the technology (just don't tell Zubrin that).
     

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  7. Shuttle Derived Vehicles are much more interesting by Pvt_Waldo · · Score: 4, Interesting

    The idea of a SDV (see http://en.wikipedia.org/wiki/Shuttle-Derived_Launch_Vehicle) seems a lot better idea to me than this massive new launcher. Builds on known technology, a lot less up-front cost, fewer unknowns, etc.

    To me, these "other uses" are simply PR that's trying to salvage a program concept that's in deep trouble.

  8. Orion is not the problem by actionbastard · · Score: 4, Informative

    The Orion spacecraft is not the problem with the current NASA Constellation program. The Ares I launch vehicle is. It does not have the lifting capability, among other problems, to meet the goals of the program so they keep cutting back on the capability of the one thing that its supposed to lift to orbit, the Orion crew capsule.

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  9. Re:Welcome to the Moon! by WindBourne · · Score: 3, Interesting
    Even if NASA gets us back to the moon, we're likely to be greeted by the Chinese, or some commercial operation's management (welcome to Bigelow at Tranquility!).

    We had 5 long years in which W and 3 years of neo-cons, as well as 2 years of both parties elected to underfund NASA. Now that we are in SERIOUS economic jepordy, we need to decide WHO we want to meet on the moon; The Chinese OR one of our companies. With Chinese military putting multiple space stations up there (and 1 civilian spacecraft), I think I would rather meet western companies. I have been saying for a long time that we must provide more funding for these companies ESP. Bigelow as well as Armadillo and blue origin. Bigelow is able to provide not just a local space station, but also a living quarters to move between here and the moon. All that it needs it a tug. Likewise, it can provide living quarters on the moon. Importantly, Bigelow WANTS to do this and is funding it. Armadillo and Blue origin have the PERFECT crafts for working on the moon. If we really want to get there SOONER, rather than latter, we will have to have the gov work with private enterprise to build these. That means that we need 1-2 billion to flow to these companies NOW. Fortunately, Augustine sees this and will be pushing it.
    So, what do we need?
    1. First, spend some more money on getting launchers into space. We need it for cargo AND humans.
    2. Once started, they need a place to go in addition, to NASA to make money. That means that we need to get another space station or two up there. Buy a bigelow sundancer and attach it to the ISS, followed by a BA-330. Use the Sundancer for storage. This will allow Bigelow to start the production line.
    3. To get to the moon as well as GEO cheaply and constantly, we need a tug and fuel depot. Come up with specs for tugs that can work our orbit and another for lunar work (perhaps the same, but I do not think so). The orbital tugs can clean up OUR junk in orbit. Ideally, other nations and companies will pay to clean up their junk.
    4. Pay Armadillo and Blue origin to get working systems to land and take off from the moon. That should be far less than what we paid for COTs.

    Basically, with 1-2 Billion NOW, we can be back on the moon BEFORE 2015.

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  10. Re:Welcome to the Moon! by Nyeerrmm · · Score: 3, Interesting

    I don't think you can count on corporations to do pure scientific exploration, as there is little profit in it initially. I think you'll always need the government there to perform the "Lewis and Clark" role.

    NASA's problem is that it isn't trying to just do the exploration, they're trying to do every single part of it. Space launch is well-enough developed at this point that they should be using commercial offerings at fixed contract prices to get to orbit, and then doing the high-risk exploration thing from there. Anything else is like asking Lewis and Clark to design their own canoe before heading off down the river.

    The inefficient cost-plus contracts made sense in Apollo: it was a high-risk, low-reward game at the time. But now that we now its possible to get to orbit, and that there are many profitable reasons to do so, it makes no sense for NASA to develop its own LV... especially after its proven that its so inept at it without much larger budgets.

  11. Re:Maintenance in GEO would be a game changer... by serviscope_minor · · Score: 4, Insightful

    Pournelle has written extensively on this, e.g.:

    Stating opinions as facts does not make them facts. Let's assemble some actual facts:

    1 There are a lot of commercial satellites
    2 There is a market for commercial launches
    3 There have been a few sucessful commercial launches
    4 Commercial companies have not taken over the scene
    5 The space shuttle is the only vehicle which has ever been capable of servicing Hubble.

    I do not know where this bizarre delusion that all commercial companies must be necessarily better than all governments comes from. I can only assume it's by people who have never worked for a large company. Or at a small/medium sized one for that matter...

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    SJW n. One who posts facts.
  12. Re:Welcome to the Moon! by serviscope_minor · · Score: 4, Interesting

    I am seriously beginning to doubt the agency's ability to get back into the business of taking big trips.

    Spirit? Oppertunity? There have been NASA build robots trundling around on Mars for several years! Their ability of the people and teams at NASA is not the problem. The problem is inteference from higher managment and the legislature wanting their pound of flesh. This problem is shared among many of the national labs (especially Los Alamos). The people doing the good work are generally there for the love of science and engineering. The people running in it for themselves.

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    SJW n. One who posts facts.
  13. Re:Maintenance in GEO would be a game changer... by vbraga · · Score: 3, Informative

    3 There have been a few sucessful commercial launches

    No, there's a plenty of commercial satelittes launches every single year. ULA, EADS Astrium, Orbital to name a few.

    I don't know where to get statistics for this but a commercial launch is something very common place.

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