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Draft Rules for X Prize Lunar Lander Challenge

IZ Reloaded writes "X Prize Foundation is asking the public to comment on the draft rules set for its lunar lander challenge. From Space.com: According to draft rules for the lunar lander contest, competitors will be challenged to build a vehicle capable of launching vertically, travel a distance of 328 to 656 feet (100 to 200 meters) horizontally, and then land at a designated site. A return trip would then occur between 5 minutes and 30 minutes later...Comments are sought by March 1 with initial sign-ups slated for May 15, according to draft rules, though Murphy added that the comment period could be extended to 30 days."

175 comments

  1. Commercial Moonlandings? by AdolChristin · · Score: 1

    Could this prize be an attempt to stimulate commercial moon landings alongside commercial spaceflight?

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    1. Re:Commercial Moonlandings? by Gherald · · Score: 3, Insightful

      > Could this prize be an attempt to stimulate commercial moon landings alongside commercial spaceflight?

      Could such an obvious question be an attempt to stimulate a half-hearted chuckle or is the source more close linked with stupidity?

    2. Re:Commercial Moonlandings? by Fred_A · · Score: 1

      Landing on the moon by travelling 300m requires having a bit of a head start...

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    3. Re:Commercial Moonlandings? by Anonymous Coward · · Score: 0

      Umm... Obviously?

    4. Re:Commercial Moonlandings? by tmasssey · · Score: 1
      Am I the only one who thought that it said 'an attempt to simulate commercial moon landings'? I mean if NASA can fake it, why not everyone else? :)

    5. Re:Commercial Moonlandings? by LifesABeach · · Score: 1

      Have you ever noticed that a elemental analysis of the surface of the moon down to a level of say 10 feet is missing?

      If you want to kick start accesss to the moon, then show everyone where the gold is. during the 1840's and '50s California gold rush, it wasn't the miner that made the money, it was the guy that sold the miner a shovel.

  2. Lunar masters by Anonymous Coward · · Score: 0

    I for one welcome our lunar masters

  3. Mythbusters by iCharles · · Score: 3, Funny

    Somehow, I think the Mythbusters will crank out an entry with the stuff around the shop...

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

      I would imagine that they are more then busy doing the TV show.

    2. Re:Mythbusters by Anonymous Coward · · Score: 0

      They could build one while attempting to debunk the myth that the moon landings were a hoax.
      Buster won't need the Niel Armstrong ejection seat.

    3. Re:Mythbusters by natedubbya · · Score: 2, Informative
      They had an episode where they tried to make a single-person jetpack, not too dissimilar from this, only on a smaller scale. It didn't go over too well, but they got close!

      Episode 32: Jet Pack
      In this "twin-taled" episode, Adam and Jamie embark on the longest and most ambitious build they've ever undertaken: creating their own personal flying machine from scratch. Are these machines as magnificent as their designers claim? To make the project more realistic, the two limit themselves to a build period of one month and a budget of $10,000. Then, the MythBuilders tackle the myth that preserving the pharaohs involved much more than mummification, that it was the shape of the pyramids themselves -- in particular, their cosmically inspired geometry -- that kept the bodies of Egyptian kings intact. Is it all a load of rot, or can the build team's homemade pyramids keep fruit fresh and razors sharp, as new-age gurus claim?

    4. Re:Mythbusters by ocie · · Score: 1

      Jamie designs a PVC and transcan airframe

      Adam investigates the nutritional qualities of frozen chicken

      Kari knits up some spacesuits

      Grant checks to see how long he can hold his breath (Sorry, Grant)

      Tory scours the neighborhood for 2L bottles

      Yeah, I could see that

      --
      JET Program: see Japan, meet intere
    5. Re:Mythbusters by loki1978 · · Score: 0

      I see that i miss Scottie

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      According to prophecy
  4. Time to go by satcomdaddy1 · · Score: 1

    Dig the X-wing fighter model rocket out of the closet!
    Seriously, how does such a short flight establish anything? launch/land/relaunch has been around for quite a bit, no?

    1. Re:Time to go by Rei · · Score: 1

      Exactly. But cue the "This will lead to cheap spaceflight!" nuts anyway. Just because they call it a lunar lander doesn't mean it is anything at all like one by completing this task, just like the X-Prize vehicles weren't anything at all like orbital rockets (and no, they were not "stepping stones", either).

      --
      "He's a liar whose lawyer is lying about his lying lawyer's lies."
    2. Re:Time to go by Martin+Blank · · Score: 1

      That depends on your sense of scale. A raft designed to carry a hunter and his catch down a river without getting his feet wet isn't going to ever carry commercially significant quantities of commodity products through Pacific storms, but it got the ideas going for larger craft which eventually could. Space Ship One, similarly, won't ever see orbit, but it may have triggered the imagination for something that will at a better cost-per-mass ratio than we traditionally have seen.

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    3. Re:Time to go by BiggerBoat · · Score: 1

      Can your X-Wing fighter model rocket do the following:

      - Take off from point A and land within 10 meters of point B which is 100 to 200 meters away from point A?

      - Can it stay in the air 90 to 180 seconds between points?

      - After landing at point B can it then repeat the above back to point A within 30 minutes?

      - And in doing all of that, can it carry a 25kg payload?

      If it can then, yeah, you better get it out and dust it off because it's worth a lot of money!

    4. Re:Time to go by Rei · · Score: 1

      Heck, with only 25kg payload , the Bell Rocket Belt could almost do that (cut its payload mass by 60%, it should at least double it's flight time and range, probably more). This is a nothing task in terms of a real moon landing. It bothers the heck out of me when people take trivial tasks and act like they're just "One Step Away!" (TM) from a major task.

      --
      "He's a liar whose lawyer is lying about his lying lawyer's lies."
    5. Re:Time to go by Rei · · Score: 1

      A hunter building a raft will have no impact on sailing through pacific storms if he builds it *after* real ships already sail through Pacific storms. SpaceShipOne's engine isn't going to inspire anything, because it's ISP is bad and is captive carry limited. Its skin won't inspire anything because it can't withstand real reentry heat. The cockpit won't inspire anything because it wouldn't withstand reentry either. Its tanks won't inspire anything because carbon fiber is already used in rocketry. Its captive carry flight won't inspire anything because it's as old as the space program, and currently launches rockets actually to *orbit* with the Pegasus.

      SpaceShipOne was designed around the goal of completing the task at hand, nothing more. They chose an excellent strategy to complete the task at hand. The task at hand was nothing like orbital rocketry, but was instead much more comparable to high performance jet craft.

      --
      "He's a liar whose lawyer is lying about his lying lawyer's lies."
    6. Re:Time to go by BiggerBoat · · Score: 1

      Heck, with only 25kg payload , the Bell Rocket Belt could almost do that

      Too bad it's disqualified for having been developed with government money. And although the rules don't specify it yet, I suspect their definition of vehicle will end up clarifying that a rocket belt won't qualify as one.

      It bothers the heck out of me when people take trivial tasks and act like they're just "One Step Away!" (TM) from a major task.

      Well clearly, then, you are not the type of person these competitions are meant to inspire.

    7. Re:Time to go by AJWM · · Score: 1

      Alas, the Bell rocket belt only had a flight duration time of about 20-25 seconds. It would need to extend that quite a bit.

      (I had the fortune to see somebody fly one of these, live. At the noise level it operates, 20 seconds is plenty. Videos don't do it justice.)

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      -- Alastair
    8. Re:Time to go by Rei · · Score: 1

      Wikipedia cites 30 seconds. "at least double" that due to the major payload reduction is "at least" 60 seconds out of the required 90.

      Of course you'd need automated control of the nozzles, and that would add weight and complexity, and it still wouldn't reach the 90 second time requirement. However, this was just an example of how simple, how poor performing of a device we're talking about is needed to win such a challenge.

      --
      "He's a liar whose lawyer is lying about his lying lawyer's lies."
    9. Re:Time to go by Rei · · Score: 1

      Just to further the comparison, I offer this: Lets compare this to the real LEM.

      DM+LM Mass: 14,696 kg (these won't be even close).
      LM mass: 4,547 kg.

      Why was it so large? Because it had to handle a lunar descent and ascent, of course, with all the delta-V that implies, with several hundred kilograms of human payload, plus one-way scientific gear on the way down and sample returns on the way up.. Yet, its engines were small:

      DM thrust: 4491 kgf (3.3 mass/thrust ratio)
      LM thrust: 1588 kgf (2.9 mass/thrust ratio)

      That's very low, because they don't need that much for liftoff/descent. For comparison, Saturn V's liftoff thrust was 3,440,310 kgf compared to a mass of 3,038,500 kg (0.9 mass/thrust ratio). These contest craft will have mass/thrust ratios somewhere at just over 1.

      Given the huge delta-V requirements (nothing like getting off Earth, but still very significant; between descent and ascent, they need 4,700 m/s compared to the usual 10 or so to get to LEO), how did they manage? With good engines:

      DM ISP: 311 sec
      LM ISP: 311 sec

      They're not great, but they're quite good. Most engines in this X-prize contest will probably be around 200 sec, which isn't even remotely close. Even 250 sec would require something to the effect of doubling the size of the Saturn V.

      In short, what they're proposing isn't even slightly like a lunar lander. They're calling it a lunar lander just to make it sound more interesting. It is not.

      --
      "He's a liar whose lawyer is lying about his lying lawyer's lies."
    10. Re:Time to go by Anonymous Coward · · Score: 0

      ...and besides - won't somebody think of the children?

    11. Re:Time to go by Armadillo_Racoon · · Score: 1

      It takes a serious amount of work, even though this prize looks taylor made for us, it's still not easy. Developing engines that can run for that long is a major PITA, the vehicle is fairly easy, we've got one already that can win the shorter duration prize. Navigation isn't hard with GPS, but landing in rough terrain - practice...? That's another major issue, testing involves actually running the vehicle that long and then finally running flights that duplicate the expected prize flights and those require special consideration with FAA/AST. This is the major issue for anyone wanting to do this, you just cannot go out to a field and run one of these things like that, it requires a license/permit and you have to do a significant amount of work to just get that.

    12. Re:Time to go by Armadillo_Racoon · · Score: 1

      For us (Armadillo Aerospace) it leads to technologies that we need to build the next bigger vehicles and their systems. Our plans are definitely moving that direction and we have some interesting ways of using COTS, at least off-the-shelf for us, parts to build much larger systems and eventually even orbital vehicles. We're suprisingly not that far away from that much bigger next step.

    13. Re:Time to go by Rei · · Score: 1

      An, an Armadillo Aerospacer - nice to meet you :) A couple of questions.

      1) Where do you plan to get your ISP from? At least your upper stage is going to need cryogenic propellants (at least LOX) unless you want 4 or so stages (and I'm sure that you're well familiar with the fact that stages add a great deal of complexity and failure points, as well as increasing costs). Of course, your current ISPs are far too low to have even a good lower stage with. How do you plan to get the engine power? How do you plan to cool your nozzles? How do you plan to avoid nozzle corrosion? Inconel or other superalloy? Do you have experience working with superalloys? Or the budget for them? Nozzle linings? If so, what types and who would apply them? CVD blended linings to prevent erosion at the border? I assume you'd be cooling with propellants. Will you be recirculating heated propellants back into the system or just jetting them? If you're tossing them, how do you plan to get the ISP? In short, what is your plan, and do you realize how very much more complicated high ISP engines are than what you've been playing with?

      2) How do you plan to deal with large vehicles - pressure stabilization, physical stabilization, or a combination of the two? Will there be a taper factor on the tanks, and if so, how do you plan to manufacture such tanks? How will boosters and stages be dealt with? Pyrotechnic separation? Details. :) Have you done force calculations for all stages of flight? Have you tried out software for that yet? (I'd hope so, your team certainly has geeks onboard ;) ). What software? Aluminum, lithium aluminum, titanium, carbon fiber, or other for the tanks? What insulation? What TPS for launch?

      3) Speaking of TPSes, I assume that you plan to launch and return manned vehicles, which leads to the big question: how would you get back? What TPS? Ablative, radiative, or purely insulative with a large heat sink? What reentry vehicle shape? What L/D ratio at hypersonic, supersonic, transsonic, and subsonic speeds? Chutes, powered landing (vertical? horizontal?), paraglider, or pure craft gliding landing? Any new reentry concepts, such as gas injection to restore laminar flow, or inflatables perhaps? Aerodynamics - what turbulence model are you using?

      4) Other: In-flight restart capability? Gimballing? Self-contained actuators or separate pumps and pistons? Aerodyanmic maneuvering during launch? Tank temperature regulation in space - how are you managing craft heat? What about hydraulic pumps? Heaters on every pump, line, valve, and actuator? What about cooling? What kind of turbopumps (tell me you're not planning to go self-pressurized to orbit.. ;) ). Craft pressurization and depressurization - what's your plan? Launch site - where? Any discussion with the local governments at that site? Batteries and fuel cells - how much, and of what types? Fuel cells self contained or drain from the tanks? How many sensors on each tank? Sensors on every line of relevant length? What sort of RCS system? What trajectory and orientation software are you going to use (in-house, I imagine? :) ). What communications gear? What life support? Assumedly not a mixed atmosphere, not pure O2, right? What kind of CO2 scrubbers? Carbon filters? Raman spectroscopy (or other) for checking for dangerous gasses? What sort of long-term facilities in the cabin (for example, a toilet? Or do people need to use bags?) Both heating and cooling for the cabin, right? Or are you relying on albedo to ensure that you only need one or the other? What type of cooling system - cryogenic propellant? Peltier to radiators? Compressor to radiators? Heck, you could probably even manage an evaporative cooler of one model or another since you have a nice convenient vacuum. Heaters on everything that vents to outside to prevent ice from forming?

      Blah, that's enough for now. As a rocketry nut, I'm interested in learning how well thought out people's long range plans are. :)

      --
      "He's a liar whose lawyer is lying about his lying lawyer's lies."
  5. Does this count? by FrontalLobe · · Score: 3, Funny
    --
    -FL
    1. Re:Does this count? by TheFlyingGoat · · Score: 1

      225. :( Skipped the 10 and ran into the big wall after the 60.

      I wonder what score gets me $10,000.

      --
      You have enemies? Good. That means you've stood up for something, sometime in your life. --Winston Churchill
    2. Re:Does this count? by aywwts4 · · Score: 1

      So much easier than the original version I played on my 386, If you want to play it on the hard difficulty setting, find a copy and play it on a P4 :D

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  6. Got this one wired... by Anonymous Coward · · Score: 0

    Hail the nearest Kangaroo...

  7. Since the moon is 100 meters away... by Anonymous Coward · · Score: 0

    I'm amazed, they consider a launch for 100 to 200 meters will get them to the moon? Who'd a thunk?

    (Is this run by a Quantum Computer?)

    1. Re:Since the moon is 100 meters away... by Yvanhoe · · Score: 1

      I too am somehow surprised with these rules. They intend to simulate moon conditions in our 1g gravity and atmosphere. What kind of prank is that ?

      --
      The Wise adapts himself to the world. The Fool adapts the world to himself. Therefore, all progress depends on the Fool.
  8. Link to the rules, not a story about them. by temojen · · Score: 4, Informative
  9. My Comment: by bobcat7677 · · Score: 2

    Just friggin get on with it! The time has passed to sit around talking about it. It's been what? 30 years since we last landed on the moon? We need action!

    Sorry, I'm bordering on rant status here...

    1. Re:My Comment: by Iphtashu+Fitz · · Score: 1
      It's been what? 30 years since we last landed on the moon?

      Don't you mean it's been 30 years since NASA's moon landing hoax? ;-)

    2. Re:My Comment: by satcomdaddy1 · · Score: 1

      And what is the point of another moon shot? the first one netted jack/shit.
      Sure, the RACE to the moon was full of innovation, but other than really proving it wasn't made of cheese, it was a more colossal waste of cash than both Gulf Wars put together!

    3. Re:My Comment: by bobcat7677 · · Score: 1

      Well, if all we need to do is FAKE it... Who needs X prizes? Just render the whole thing with CGI. I'm sure some geek could pull that off in his basement.

    4. Re:My Comment: by bobcat7677 · · Score: 2, Funny

      I for one look forward to mining the moon for all it's available natural resources. I'm sure there has to be some useful minerals in it's composition and if there is ice on it, that will be helpful to keep my drink cold.

    5. Re:My Comment: by susano_otter · · Score: 1

      Strangely, even today our CGI technology is not up to the task of producing footage of the extent and nature of the Apollo footage, with high enough quality to fool both the human visual senses and the most advanced forensic analysis, and certainly not for less than it would cost to just conduct the damn project for real.

      --

      Any sufficiently well-organized community is indistinguishable from Government.

    6. Re:My Comment: by yeremein · · Score: 4, Informative

      Sure, the RACE to the moon was full of innovation, but other than really proving it wasn't made of cheese, it was a more colossal waste of cash than both Gulf Wars put together!

      The cost of the Apollo program was $135 billion in 2005 dollars.

      George Sr.'s Gulf war cost $61 billion. The cost of the current Iraq war is in excess of $240 billion and rising. Apollo didn't even come close.

    7. Re:My Comment: by TekPolitik · · Score: 1
      Who needs X prizes? Just render the whole thing with CGI. I'm sure some geek could pull that off in his basement.

      His name is Stephen Spielberg. His basement is just so bloody big it won't fit under his house.

    8. Re:My Comment: by jheath314 · · Score: 2, Insightful

      Not sure if you're being sarcastic, but I for one would argue that taking the first steps towards human interplanetary and interstellar travel were worth a lot more than fighting some stupid wars. Developing the technology to go to the moon is one thing, but there is no substitute for proving you can by actually doing it.

      --
      Procrastination Man strikes again!
    9. Re:My Comment: by bobcat7677 · · Score: 1

      Who needs to fool forensic analysis? As is proved by the moon landing consiracy theorists, all you need to do is spread a rumor that the footage is fake/real and include some lies about how this or that doesn't (or does) make sense. The public is so dumb that they will submit to your power of suggestion regardless of if the assertions really do make sense.

    10. Re:My Comment: by susano_otter · · Score: 1

      All of which argues in favor of the Apollo Project being real. After all, NASA didn't just "spread a rumor that the footage is real". They actually produced huge amounts of the footage itself, along with mountains of other evidence from eyewitness accounts to physical samples.

      --

      Any sufficiently well-organized community is indistinguishable from Government.

    11. Re:My Comment: by inKubus · · Score: 1

      "O.K., boss, this LTX-27 concealable mike is part of the same system that NASA used when they faked the Apollo moon landings. Yeah, the astronauts broadcast around the world from a soundstage at Norton Airforce Base in San Bernadino, California. So it worked for them, shouldn't give us too many problems."

      --
      Cool! Amazing Toys.
    12. Re:My Comment: by Don+Negro · · Score: 1

      God, I love that movie.

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      Don Negro
      Perl 6 will give you the big knob. -- Larry Wall

  10. Here's a Solution by sbowles · · Score: 4, Funny

    By the summary, it sounds like a Helicopter could win this.

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    You sly dog: you got me monologuing! - Syndrome
    1. Re:Here's a Solution by Michael+Duggan · · Score: 3, Informative

      : By the summary, it sounds like a Helicopter could win this.

      3.2.18.1 Take-off vertically under only rocket power from Point A. No aerodynamic or air-breathing methods of hovering, propulsion, or landing are permitted except in the case of abort.

    2. Re:Here's a Solution by u-235-sentinel · · Score: 1

      3.2.18.1 Take-off vertically under only rocket power from Point A. No aerodynamic or air-breathing methods of hovering, propulsion, or landing are permitted except in the case of abort.

      I don'tsee how this would work in space. In a vacuum what would the blades of the chopper push against to provide lift? No atmosphere :D

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    3. Re:Here's a Solution by Rei · · Score: 1

      Yes, takeoff. Strap some rockets to a small helicopter, just enough to get it 100 meters up and hold it there while you start up the engines, and you're set. Or, use rockets to propel a small airplane vertically over 100 meters (although you'd need to land vertically). Or a blimp. Heck, even a glider plus parachute for the vertical landing - you only need to stay up for 90 seconds and you don't have to stay over the 100 meter initial requirement, plus you have at least five minutes to re-pack your parachute. You'd have to have an extra "engine" to start up and shut down near the end in such a case, however (rule 3.2.18.5)

      This looks like a hole in the rules to me. Only takeoff specifies rocket power only and no aerodynamic influences. I suppose you could read the second sentence as applying to all sections, but that would be a strange way to read it since this section is presented sequentially as a series of tasks. Especially since the second takeoff re-mentions the powering limitations, which would seem to indicate that it *doesn't* apply to all tasks.

      --
      "He's a liar whose lawyer is lying about his lying lawyer's lies."
    4. Re:Here's a Solution by MidnightBrewer · · Score: 1

      One really big thing they're overlooking in their challenge is the fact that lunar gravity is only 1/16 of Earth's. Doing this on Earth is ridiculously difficult by comparison.

      --
      "Give a man fire, and he'll be warm for a day; set a man on fire, and he'll be warm for the rest of his life
    5. Re:Here's a Solution by johno.ie · · Score: 1

      So do it on the moon then. I'm sure the X-Prize Foundation would be happy to give the prize to you. :)

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      872835240
    6. Re:Here's a Solution by BiggerBoat · · Score: 1

      One really big thing they're overlooking in their challenge is the fact that lunar gravity is only 1/16 of Earth's.

      They're overlooking no such thing. Here is their goal:

      The (TITLE) Lunar Lander Challenge is designed to accelerate technology developments supporting the commercial creation of a vehicle capable of ferrying cargo or humans between lunar orbit and the lunar surface.

      A vehicle cabable of doing the tasks necessary to win this prize on the Earth should be in the performance ballpark necessary to take off from the moon's surface and get to Lunar orbit, then return, or vice-versa. That is the goal.

      Oh, and I assume you meant the Moon's gravity is 1/6th that of Earth's.

    7. Re:Here's a Solution by Matimus · · Score: 1

      I will admit that I'm ignorant on the subject. The 100 meters isn't very far by comparison to how far you would have to go to get into lunar orbit (assuming you would use the lander to get into lunar orbit from the moon's surface).

      --
      GENERATION 25: The first time you see this, copy it into your sig on any forum and add 1 to the generation. Social exper
    8. Re:Here's a Solution by Anonymous Coward · · Score: 0

      What part of "No aerodynamic or air-breathing methods of hovering, propulsion, or landing are permitted except in the case of abort." do you not understand smarty head?

    9. Re:Here's a Solution by Rei · · Score: 1

      What part of "takeoff" do you not understand, oh purveyor of preschool insults?

      --
      "He's a liar whose lawyer is lying about his lying lawyer's lies."
    10. Re:Here's a Solution by FleaPlus · · Score: 1

      One really big thing they're overlooking in their challenge is the fact that lunar gravity is only 1/16 of Earth's. Doing this on Earth is ridiculously difficult by comparison.

      The gravity is lower, but it's probably safe to assume that a vehicle coming in to land on the moon is going to have a -much- higher initial velocity, and it needs to get rid of that velocity to keep from crashing. When you take that into account, the energy requirements are probably pretty similar.

    11. Re:Here's a Solution by whitehatlurker · · Score: 1

      That's one thing which puzzles me. Why would they restrict launch to a vertical, rocket-powered takeoff from earth? I can see that would be the nicest way to get back from the lunar surface, but there are other terrestrial options. (Like a launch-from-flight: boosting the space craft to altitude via some aircraft and letting it go from there.)

      --
      .. paranoid crackpot leftover from the days of Amiga.
    12. Re:Here's a Solution by sconeu · · Score: 1

      That's 1/16 for values of 16 approaching 6.

      Luna's gravity is abou 1/6 of Terra, not 1/16.

      --
      General Relativity: Space-time tells matter where to go; Matter tells space-time what shape to be.
    13. Re:Here's a Solution by MidnightBrewer · · Score: 1

      Knew I should have double-checked that. Or written, "a fraction" (always safe.) I see the point, however; you can't afford to have something under-performing when you're on another planet and your life depends on it.

      --
      "Give a man fire, and he'll be warm for a day; set a man on fire, and he'll be warm for the rest of his life
  11. If someone can work on the ship design... by sootman · · Score: 2, Funny
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    1. Re:If someone can work on the ship design... by hcdejong · · Score: 1

      Augh! Don't remind me! When I first saw that game I thought 'cool'. Then I tried playing it, but the berk inside the lander always insisted on going pedal-to-the-metal until he was out of fuel, and then he'd come crashing down. Moron pilot.

  12. Open source rules by jsherman256 · · Score: 1

    Sounds like they are trying to improve the contest rules the open source way :)

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    -JSherman
  13. Manned or unmanned? by kclittle · · Score: 3, Interesting
    TFA doesnt' specify...

    --
    Generally, bash is superior to python in those environments where python is not installed.
    1. Re:Manned or unmanned? by AJWM · · Score: 1

      The rules seem to suggest unmanned but don't prohibit manned. Of course if the person aboard is piloting the thing, then he counts as part of the weight of the control system and not the 25kg (minimum) payload.

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      -- Alastair
    2. Re:Manned or unmanned? by WillAffleckUW · · Score: 1

      Well, that brings up the next question: can we use cyborgs if manned, or can women be pilots?

      And is it ok to use cybernetically enhanced space monkeys? They have a lot less mass, and were in space long before humans were.

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      -- Tigger warning: This post may contain tiggers! --
  14. figures by SgtXaos · · Score: 5, Funny

    "Comments are sought by March 1 with initial sign-ups slated for May 15, according to draft rules, though Murphy added that the comment period could be extended to 30 days."

    Murphy always makes things take longer than you planned...

    --
    -- Don't call me "Sir," I increase entropy for a living!
  15. Real Simulation? by Araxen · · Score: 1, Interesting

    I think instead of 5 or 30 minutes after landing it should be 24 hours or so to win. Why would anyone go to the moon and only spend 30 minutes there?

    1. Re:Real Simulation? by HillBilly · · Score: 1

      Planes arrive and depart every minute from airports... i bet ya the passengers stay a bit longer longer then a minute at their destination. If you understand what I am getting at.

      --
      "Go into the hall of mirrors and have a bloody hard look at yourself" - HG Nelson
  16. Very cool, but.... by smaerd · · Score: 3, Funny

    ...these rules make me think of one thing: NASCAR.

    Now all we need is guys driving 4x4s with gun racks, Confederate Flags, Calvin pissing on a [automotive brand] logo, and an X-Prize stencil on or around the back window.

    (seriously, the I think the X-Prize is an incredibly awesome thing... this idea just made me chuckle.)

    1. Re:Very cool, but.... by Plunky · · Score: 1
      (seriously, the I think the X-Prize is an incredibly awesome thing... this idea just made me chuckle.)

      Made me chuckle too, I read the title as "Daft Rules for X Prize Lunar Lander Challenge"

    2. Re:Very cool, but.... by jcgf · · Score: 1
      Now all we need is guys driving 4x4s with gun racks, Confederate Flags, Calvin pissing on a [automotive brand] logo, and an X-Prize stencil on or around the back window.

      Well if it gets the general public interested in space then I'm all for it.

    3. Re:Very cool, but.... by Tackhead · · Score: 2, Funny
      > Now all we need is guys driving 4x4s with gun racks, Confederate Flags, Calvin pissing on a [automotive brand] logo, and an X-Prize stencil on or around the back window.

      Close, no cigar. Back on Earth, would break out the Photoshop, make cut-paste thing.

      - Lunar buggy.
      - Way too much air in right-hand-side tires.
      - Mass driver.
      - "Free Luna!" flag.
      - Cartoon Burt Rutan pissing on a NASA logo.
      - Drive clockwise around crater rim.

      > (seriously, the I think the X-Prize is an incredibly awesome thing... this idea just made me chuckle.)

      Mycroft wonders if chuckle is funny-once or funny-all-the-time. Crazy thing. (Luna ain't only harsh mistress around here. Should see Moondot moderators someday.)

  17. 1st contestant by Greger47 · · Score: 1
    Well, it looks like Carmack and company have this one pretty much nailed. Liftoff!

    /greger

  18. Rope and missile. by xanderwilson · · Score: 3, Funny

    So you attach a rope to a missile, fire the missile at the moon, and then pull it back when you're done. What's the problem here?

    1. Re:Rope and missile. by Anonymous Coward · · Score: 1, Funny

      C'mon - use your head dude. Do you want to be the guy who's pulling on the rope that brings down a missle from how many thousands of Kilometers in the sky? you'll be crushed ... you're just not thinking.

    2. Re:Rope and missile. by shmlco · · Score: 1

      Okay, attach rope WITH HOOK to missle. Fire missle at moon. Pull moon back with rope until moon is in LEO. Now establishing a lunar base should be easy!

      --
      Any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so.
    3. Re:Rope and missile. by stefanlasiewski · · Score: 1

      Save time. Use bungee cord.

      My Boy Scout Master, Ol' Half-Hitch, would be shocked!

      --
      "Can of worms? The can is open... the worms are everywhere."
    4. Re:Rope and missile. by bill_kress · · Score: 1

      Not only that but we've solved that pesky space elevator problem.

    5. Re:Rope and missile. by martian265 · · Score: 1
      So you attach a rope to a missile, fire the missile at the moon, and then pull it back when you're done. What's the problem here?


      Yes, because this always worked so well for the coyote.
    6. Re:Rope and missile. by xanderwilson · · Score: 1

      I'm all for being efficient, but a bungee cord? That's just lazy.

      No badge for you.

      Alex.

  19. What gravitational field? by miniver · · Score: 1

    I just read the rules, and it talks about the contest being held in a "simulated lunar surface". Where are they planning on simulating 1/6G on Earth? Or are they intending that a craft designed for operating on the lunar surface should also be capable of operating on the Earth's surface too?

    --
    We call it art because we have names for the things we understand.
    1. Re:What gravitational field? by susano_otter · · Score: 1

      Probably they mean "simulated with regard to terrain".

      Unless the people putting in all of this intense thought and effort into the prospect of moon landings are so completely stupid that they seriously thought they were going to invent anti-gravity just to simulate the moon's mass for their contest.

      Although I have to admit that it would be a pretty big ego boost for you, if they did happen to overlook that particularly obvious problem, while you were able to pick up on it right away without giving the matter much thought at all. You should look into it.

      --

      Any sufficiently well-organized community is indistinguishable from Government.

    2. Re:What gravitational field? by Anonymous Coward · · Score: 0

      The usual technique is to put a tether on top of the craft and offset some of the weight that way. Or, if you want to move further, you could feed fuel to the craft from a ground tank through a tube, and lower the apparent weight that way?

  20. Is this a joke? by StikyPad · · Score: 2, Interesting

    Because launching from the earth is the same? Clearly I'm not a rocket scientist, but with 1/6th the gravity, wouldn't it take far less propulsion to get off the ground on the moon?

    Also: traveling horizontally for 100-200m? I'm guessing there are more crosswinds on earth than on the moon. Also, once again, the same thrust that might move you 100m on the moon wouldn't move you 10m on earth. This seems like a ridiculous standard to meet, and it's going to require far more engineering to accomplish than is necessary for lunar travel.

    Or am I missing some large part of the puzzle here, like their .15Gee test field?

    1. Re:Is this a joke? by twostar · · Score: 2, Insightful
      The idea is that if it can do 100-200m on earth it can do much more on the Moon. The whole system is suppose to show capability of a Lunar transit system.

      From the Draft:
      The (TITLE) Lunar Lander Challenge is designed to accelerate technology developments supporting the commercial creation of a vehicle capable of ferrying cargo or humans between lunar orbit and the lunar surface.
      Since the moon does not have an appreciable atmosphere, if the system can meet the goals on earth it shouldn't have any problems on the moon. The big problems are developing the propulsion systems cheap and light enough. Turning them on and off at different times doesn't change much in the scheme of things if they can provide enough thrust at the right times.
    2. Re:Is this a joke? by temojen · · Score: 1

      Well, for one thing, it's a heck of a lot easier to get your lander and all it's fuel to the earth than the moon.

    3. Re:Is this a joke? by nb+caffeine · · Score: 1

      Easy. They just fly everybody to the moon to test their landers under those rules.

      --

      "Something's wrong with you...and I hope we never do meet again." - Deftones When Girls Telephone Boys
    4. Re:Is this a joke? by Xeirxes · · Score: 1

      Think about this logically.

      1. If they create a ship with this power on earth, then they can easily streamline it if it ever needs to be used in a lunar environment. It's better to start off making a craft with excess power than it is to start off making one with a lack of power.

      2. It may prove to be a more important thing to see a craft that can navigate the TERRAIN on the moon, not just the different gravity environment.

      3. Holding a contest like this will further the development of future crafts, and so is beneficial to the overall goal of getting to the moon, whether or not the craft that is created here is used there. It also adds a competitive edge which can spur the makers on.

    5. Re:Is this a joke? by StikyPad · · Score: 1

      I understand the "if it will work on earth, it will definately work on the moon" concept, but it seems like requiring it to work on earth first constrains the possibile solutions. Again, I'm no rocket scientist, and perhaps any solution which would perform the necessary actions on the moon would, by definition, be able to complete the test on earth. It just seems like flight is a lot more difficult on earth because of its atmosphere where you have to worry about things like aerodynamics. (I imagine that anything that reaches 600ft would achieve a velocity high enough that drag is a factor.)

      I mean, would the lunar lander from the Apollo program work on earth at all? It seems like the tin-can shape alone and lack of any aerodynamic controls would cause it to tumble and crash.

    6. Re:Is this a joke? by Anonymous Coward · · Score: 0

      Maybe I should've RTFA'd but... If you can create an /empty/ lander that does that on earth then on the moon it would hold plenty of ppl/equipment and have similar capabilities.

    7. Re:Is this a joke? by FleaPlus · · Score: 1

      Since the moon does not have an appreciable atmosphere, if the system can meet the goals on earth it shouldn't have any problems on the moon.

      Not only that, but the energy required to enter orbit is somewhat more than that required for short-term hovering. I suspect that the energy cost of hovering at a certain altitude in Earth's gravity and entering orbit in lunar gravity are probably somewhat similar. Anybody with a better understanding of orbital mechanics than me care to do the calculations?

    8. Re:Is this a joke? by FleaPlus · · Score: 1

      It just seems like flight is a lot more difficult on earth because of its atmosphere where you have to worry about things like aerodynamics.

      Sure, it might be more difficult, but it's still going to be easy enough that there's probably going to be at least one likely winner. For example, a couple years ago John Carmack's Armadillo Aerospace demonstrated the vehicle shown in this video, which climbed to 134 feet and landed back down less than foot away from the landing point. A new vehicle with straightforward improvements should be able to win the prize.

      You can see in the video that there's definitely some wind blowing across the vehicle, but the control system is able to account for it. Although his methodology is sometimes haphazard, Carmack's software-based control system is superb and should be able to handle the "atmosphere complications" you mention.

    9. Re:Is this a joke? by StikyPad · · Score: 1

      I watched the video, and that flight was impressive; no doubt about it.

      But a lunar lander needn't be (and shouldn't be confined to) an aerodynamic design. That's a huge constraint. Huge. Maintaining position, with the help of inertia, it also a lot easier than horizontal flight. Again, aerodynamics will play a large role there, when they needn't be considered at all for lunar travel.

      Just because someone can do it and win the prize doesn't mean the best design for the moon wasn't eliminated because it wasn't feasible on earth.

      I maintain that this test requires engineers to provide a solution for a completely different set of variables than is appropriate. A solar sail wouldn't work at all on earth, but it might be great for traveling in space. A boat doesn't work well on land. A relatively high G environment with a thick atmosphere is, in my opinion, just as different from traveling on the moon as the examples I just listed. It's these sorts of limitations which prevent innovative solutions. See also: my other response.

    10. Re:Is this a joke? by FleaPlus · · Score: 1

      I maintain that this test requires engineers to provide a solution for a completely different set of variables than is appropriate.

      I'm not sure why you think aerodynamics is such a big deal. For the sorts of VTOL rocket-powered vehicles we'll probably see in this competition, aerodynamics is just another source of maneuvering noise, which any proper control algorithm should be able to deal with.

    11. Re:Is this a joke? by FleaPlus · · Score: 1

      But a lunar lander needn't be (and shouldn't be confined to) an aerodynamic design.

      I should also add that Armadillo Aerospace's vehicle is definitely -not- an aerodynamic design, and doesn't need to be.

    12. Re:Is this a joke? by Gorimek · · Score: 1

      I imagine that anything that reaches 600ft would achieve a velocity high enough that drag is a factor

      They point you may be missing is that this demonstration does not need to reach any speeds higher than a pedestrian. It hovers!! At those speeds, air resistance can safely be ignored. And it would probably not be safe to go much faster than that anyway.

  21. In other news... by Anonymous Coward · · Score: 0

    Linux is STILL for fags.

  22. Comment by Anonymous Coward · · Score: 0

    ..shouldn't we be designing a Martian Lander instead?

    Why are we even going back to the Moon anyways? By the time we get there China will have claimed it as part of their 'Democracy' anyways...

  23. Armadillo tailored contest? by Anonymous Coward · · Score: 0

    Sounds like this is the competition armadillo aerospace is supposed to win.

  24. Nitro Burning Funny Lander by radiumhahn · · Score: 1
    competitors will be challenged to build a vehicle capable of launching vertically, travel a distance of 328 to 656 feet (100 to 200 meters) horizontally, and then land at a designated site. A return trip would then occur between 5 minutes and 30 minutes later...

    Mine is going to have a spoiler and spinner hub caps too! And wicked flames!

    1. Re:Nitro Burning Funny Lander by Walruzoar · · Score: 1

      Look, I may be wrong here, but last time I checked the moon was a further than 328 to 656 feet away. Lunar landing my ar$e.

      --
      Take off every 'Sig'!! You know what you doing. http://www.donline.co.uk/
  25. Realistic moon conditions.. by Vellmont · · Score: 2, Insightful

    The draft of the rules mention that you need to use rocket power, and not some kind of aerodynamic lift, but that's it. I think they should specify a more realistic conditions of the moon. Obviously you can't have it fly in a vacuum, but you could expose the craft to a vacuum before the flight to make sure it can survive a vacuum. You could do the same thing with the temperature extremes. At the very least a craft shouldn't be able to rely upon earth based navigation aids, like GPS, the suns position in the sky, or even the earths magnetic field.

    --
    AccountKiller
    1. Re:Realistic moon conditions.. by nsayer · · Score: 1

      Is GPS really unusable near the moon?

      One fellow I spoke with once who, well, was a rocket scientist, said that GPS can be used in earth orbit, but you typically need to use specialized code that, for example, doesn't assume that the receiver will be under (that is, nearer to the center of the earth) the satellites.

      So GPS can be used in space, but there is probably a limit to how far away it could be used. The satellite antennas are optimized to send signals towards the surface, and at some point the delta between the distances to the satellites probably get too small to be useful (as you get further away, the angles between the satellites get small).

      Alas, I don't know how to do the math to find out how far away from the Earth you need to be to make GPS useless.

    2. Re:Realistic moon conditions.. by Vellmont · · Score: 1


      Is GPS really unusable near the moon?


      There are two problems, both of which I think makes GPS unseable on the moon.

      1. Signal strength. The moon is about 240,000 miles from the earth. The GPS satelites are at about 12,000 miles. Maybe you can have a very high gain antenna to boost the signal, but signal strength is going to be a problem.

      2. Lack of triangulation. As you pointed out because of the extreme distance, you're not going to get very good triangulation from any of the satelites. Assuming you could get a signal, your degree of innacuracy is going to be rather large because of the poor triangulation. I'm not sure exactly how to do the math here, but my gut feeling is that this is going to make GPS pretty useless on the moon. You might be able to determine you're on the moon, or even in the Sea of Tranquility, but that's not exactly terribly usefull to the competition

      --
      AccountKiller
    3. Re:Realistic moon conditions.. by chihowa · · Score: 1

      3. Wouldn't work quite so well on the "dark side" of the moon!

      --
      If you want a vision of the future, imagine a youtube comments section scrolling - forever.
    4. Re:Realistic moon conditions.. by ScrappyLaptop · · Score: 1

      Okay, assume Lunar GPS, then. If you are going to be spending the money for a Lunar Terminal, a few satellites are just operating expenses. You'll only need a few. Heck, you could even drop three on the surface some useful distance away from your usual landing spot and be done with it.

    5. Re:Realistic moon conditions.. by Andy+Dodd · · Score: 1

      More importantly than distance-related losses, I'm pretty sure that the GPS satellites have directional antennas which point downwards towards the Earth.

      Of course, if a satellite is "rising" from behind the Earth relative to the Moon, then the Moon might be in its antenna pattern, but the satellites with the best LOS to the Moon will have their antennas pointed in the opposite direction.

      --
      retrorocket.o not found, launch anyway?
    6. Re:Realistic moon conditions.. by sjames · · Score: 1

      Depending on the intended Lunar landing site, I would think a solar reference would be acceptable. A GPS like system should also be acceptable IFF the team can show a viable plan to implement the needed transmitters in advance of the mission (and hopefully show it to be a cost effective choice).

  26. Wow, controlled hover with a rocket. by nkntr · · Score: 1

    Very tricky, indeed. This is harder than it appears at first glance. Anyone can set off a time release bomb that blows it's wad, propelling a ballistic projectile into the air, but it is a bit harder to either: [ (1) stage a series of rockets to create equilibrium with gravity or (2) use a single rocket with a controllable thrust. ] But then you have the problem of attitude adjustment (keeping the rocket's business end pointed at the ground without wind resistance/fins keeping the mechanism pointing straight) and horizontal movement, also while keeping attitude adjustment in check. On top of that, add 25Kg of mass. Not an easy trick at all.

    1. Re:Wow, controlled hover with a rocket. by AJWM · · Score: 1

      It's a piece of cake (well, relatively) with rockets if you're not using solids.

      The old Bell rocketpack (as seen in the opening sequence of "Thunderball", among many others) is one such, using a hydrogen peroxide monopropellant and two nozzles. All guidance and control provided by the pilot.

      The more recent DC-X, using LH2/LOX in four modified RL-10 engines (modified mostly to operate at sea level by cutting back the engine bells) did this just fine. As of course did the Apollo LM descent module, using hypergolic propellants and a deeply throttlable engine.

      The SDI project tested some interceptors (Brilliant Pebbles) not much bigger than a breadbox -- I've seen video footage of one such hovering (indoors!) on its attitude jets while pivoting to track a target.

      But yeah, solids suck.

      --
      -- Alastair
    2. Re:Wow, controlled hover with a rocket. by Anonymous Coward · · Score: 0

      Years ago it may have been complicated to do something like that. In the age of solid state accelerometers setting up a fairly cheap computer controlled stability system isn't really that hard at all. The problem isn't so different from keeping a quad-rotor craft stable in flight, and I've seen one of them designed and flown by my fellow aerospace students. If students can cheaply put together a system to keep an inherently unstable craft stable, I doubt that's going to be the major concern of the people working on this problem. I'd actually like to take a crack at this myself. This sounds a bit more accessable than flying a plane to the edge of space.

  27. Did they say Moon or Dune? by dbamazing · · Score: 1

    Wonder if they have to include a module to avoid the worms when they approach, so the spice will be safe...
    Moon dust expands conciousnes

    1. Re:Did they say Moon or Dune? by MichaelSmith · · Score: 1

      I thought it said Daft Rules

  28. Armadillo Aerospace by Somegeek · · Score: 1
    This sounds like it was written to the give funding and publicity to Armadillo Aerospace. If they would have remembered to keep their rocket fueled, they would been doing this a year and a half ago.

    http://www.armadilloaerospace.com/n.x/Armadillo/Ho me/News?news_id=272

    If they put their mind to it they should be able to fullful this challenge in a number of weeks.

    --
    And as you tread the halls of sanity, You feel so glad to be, Unable to go beyond. I have a message, From another time..
  29. Excellent! by Trogre · · Score: 1

    Now all that time I wasted playing Lunar Lander in high school might just pay off!

    --
    "Nine times out of ten, starting a fire is not the best way to solve the problem." - my wife
  30. Re:figures - (Hofstadter's Law) by Anonymous Coward · · Score: 0

    Hofstadter's Law:

    It always takes longer than you expect, even when you take into account Hofstadter's Law.

  31. You have the comparison wrong... by everphilski · · Score: 1

    its not about the travel, its about the controls. It is strictly a controls problem. And on that level, it *is* a challenge.

  32. Tough. by Deliveranc3 · · Score: 1

    To make the specifications specific enough that you get something useful but not so specific you don't allow for unique thought.

  33. Go to the moon, eh? by PatTheGreat · · Score: 1

    Why don't they just make the prize for actually getting to the moon? The original X-Prize wasn't won for years, so why make the next one easy? If they really wanted to incorporate their signature do it twice in a row method, they could maybe have the people launch into space, come back, and then go to the moon. That would be cool.

    --
    Google: "All your data are belong to us."
  34. why take off vertically, inefficient anyone? by plasmacutter · · Score: 1

    Vertical takeoff is highly inefficient, why does it "have" to be vertical takeoff, why not horizontal like a plane? make use of air's capacity to lift, and the fact that it's easier to move forward than straight up against gravity.

    --
    VLC FOR MAC IS DYING! IF YOU DEVELOP, PLEASE SAVE IT!!
    1. Re:why take off vertically, inefficient anyone? by kidgenius · · Score: 1

      No air on the moon, hence to aerodynamic "lift"

    2. Re:why take off vertically, inefficient anyone? by BiggerBoat · · Score: 2, Insightful

      why does it "have" to be vertical takeoff, why not horizontal like a plane? make use of air's capacity to lift

      Because this is meant to simulate a Lunar Lander.

    3. Re:why take off vertically, inefficient anyone? by Anonymous Coward · · Score: 0

      1. Terraform Moon, provide artificial Earth-like gravity, atmosphere, etc.

      2. Now that you've gotten the easy part done, enter your incredibly-hard-to-engineer standard airplane that relies on Earth aerodynamics, and collect the contest money.

      3. ?????

      4. Profit!

    4. Re:why take off vertically, inefficient anyone? by Anonymous Coward · · Score: 0

      moron

    5. Re:why take off vertically, inefficient anyone? by plasmacutter · · Score: 1

      and how exactly does it get TO the moon? it comes from earth, which has air.

      --
      VLC FOR MAC IS DYING! IF YOU DEVELOP, PLEASE SAVE IT!!
    6. Re:why take off vertically, inefficient anyone? by BiggerBoat · · Score: 1

      and how exactly does it get TO the moon?

      The same way Apollo's lunar lander did: via a different spacecraft.

      This competition has zero to do with that other spacecraft (whatever it might ultimately be), and everything to do with going from lunar orbit to the lunar surface and back. From the Lunar Lander Challenge rules (linked from TFA):

      The (TITLE) Lunar Lander Challenge is designed to accelerate technology developments supporting the commercial creation of a vehicle capable of ferrying cargo or humans between lunar orbit and the lunar surface. Such a vehicle would have direct application to NASA's space exploration goals.

      A vehicle capable of winning the Level 2 prize would basically be capable of going to and from the moon's surface and lunar orbit (with refueling at each stop).

      Ulitmately, NASA just might have a different competition for that other vehicle to get from the Earth to the Moon, but this isn't it.

  35. Sounds like like a Hawker Harrier by Anonymous Coward · · Score: 0

    Isnt that what they do?

  36. First Rule for a Lunar Lander contest by WillAffleckUW · · Score: 1

    You have to make it back.

    Otherwise, it's kind of pointless, don't you think?

    Second rule is, nobody talks about Lunar Landing Contests! ...

    Dang, guess I can't compete. Good thing Paul Allen can take my place with his super secret company on the Seattle waterfront that noone knows is designing and building spacecraft and that you can see with Google Earth ...

    --
    -- Tigger warning: This post may contain tiggers! --
  37. Feet by msbsod · · Score: 1

    It just amazes me to see that they still deal with these stupid imperial units. Remember when Lockheed Martin's engineers caused the loss of a NASA Mars probe because Lockheed Martin still has not adapted the metric system, which 95% of the world use, including NASA? Or take the Spaceshipone mission. At first nobody knew whether they reached the goal of 100km altitude, because the Spaceshipone team used another imperial unit, the mile? The problem was that people use a ratio of 1.6 km/mile. The actual factor is 1.61. The whole world is laughing about this. One unit per physical quantity, only factors of 10 - that's it. Please, adapt. My grandmother mastered this little step for mankind.

    1. Re:Feet by TigerNut · · Score: 1

      It's 1.609344 kilometers per mile. If you're going to be pedantic, do it right.

      --

      Less is more.

    2. Re:Feet by Anonymous Coward · · Score: 0

      Is that a wet foot or a dry foot? How about the ounces, solid or liquid? Do you still use stones?

    3. Re:Feet by MarkChovain · · Score: 1

      Well - sort of.

      That's true of International miles, but if you are using US Survey miles, then it is a little longer, at exactly 1.609347 km (It's 3mm longer). Of course, nautical miles are longer again, at exactly 1.8288 km. The problem I found, which turned into my thesis, was that the US will be put to work over distances that would make me a crate of condoms if even breathed the word girlfriend.

      Of course if you want to get really pedantic, it is worth noting that the mile was not standardised until the late 1500s, before which it varied, but was generally accepted to be what is now about 1.5 km.

      There have been other different miles around too (and some are still in use): See wikipedia for definitions of Italian, Scottish, German, Long, Metric, Dutch, and Polish miles, which range anywhere from 1.5 to 6.8 km.

      If you're going to be pedantic, do it right.

      If you're judging me from a few degrees to pick targets off a screen is any more exciting than using a lot more press if it ran on a 4" screen, this is to put them out of that exact approach is likely going to be kidvid. On the other hand, if you're judging me from a very poor substitute for real driving. Same as this; it doesn't matter who says it.

    4. Re:Feet by Anonymous Coward · · Score: 0

      Sorry, Captain, we missed the moon because we calculated with the wrong mile...

    5. Re:Feet by cgenman · · Score: 1

      The problem I found, which turned into my thesis, was that the US will be put to work over distances that would make me a crate of condoms if even breathed the word girlfriend.

      Yes, exactly. ...wait. What?

  38. Can we use the space elevator for liftoff? by WillAffleckUW · · Score: 1

    That would solve a lot of problems, and make it really easy to beat out all the other competition, IMHO.

    And, also, is it ok if my Lunar Lander mates with another Lunar Lander and forms a vastly improved Lunar Lander, like in those anime shows like Vandread? And, if that's ok, can they make sure the other pilots are like the pilots on that show? Well, except for the being a prisoner part ....

    Me, I'm waiting for the teleporter to be built.

    --
    -- Tigger warning: This post may contain tiggers! --
  39. Daft Rules ... by complete+loony · · Score: 1
    "Daft Rules for X Prize Lunar Lander Challenge"

    I'll say.. oh wait..

    --
    09F91102 no, 455FE104 nope, F190A1E8 uh-uh, 7A5F8A09 that's not it, C87294CE no. Ah! 452F6E403CDF10714E41DFAA257D313F.
  40. Atari by scolen2 · · Score: 1

    How about each entry has to make a flight sim that runs on a Atari 2600. Luner Lander - X-prize edition!

  41. Triangualtion? what triangulation? by astro-g · · Score: 1

    its all based on timing differences between the satalites,
    the reciever has no idea at all which way its pointing, and it doesnt care.
    It cannot measure angle between the satalites, only relative distance

    1. Re:Triangualtion? what triangulation? by Vellmont · · Score: 1

      Yes I understand that, and triangulation is probbably a poor term. It does however provide a general idea of why GPS probbably won't work well on the moon.

      --
      AccountKiller
    2. Re:Triangualtion? what triangulation? by nsayer · · Score: 1

      In this case, the "triangles" in question are defined by the receiver and a pair of satellites. The length of each side of the triangle is either known (satellite-to-satellite because of the almanac), or measured (satellite-to-receiver).

      It's just another way to look at it.

      The way I said it, the angles become too small.

      The way you say it, the ratio of the delta between the transit times and the transit times themselves becomes too small.

    3. Re:Triangualtion? what triangulation? by Vellmont · · Score: 1

      Well, technically there's no triangles involved. GPS uses timing based on distance from each satellite. Draw a sphere around each satellite you get a signal from with a radius of the distance it is from you. The intersection of all the spheres is where you must be. Of course it's a little bit more complicated than that since the receiver doesn't have an atomic clock, and thus can't directly tell the distance from each satellite.

      --
      AccountKiller
  42. Original Lunar Lander ... by ta+ma+de · · Score: 1

    Seemed to work just fine. Why not copy that?

  43. Wouldn't a fairer comparison be a pleasure yacht! by bWareiWare.co.uk · · Score: 1

    In a world where the only ocean going supertankers are government owned and nearing retirement. The X-Prise inspired an industry focused on making river boats into producing a sea going yacht.

    Granted they may not be ready to cross the ocean or carry cargo, and the technology may never be adaptable to these tasks, but at least the industry has new horizons!

  44. Re:Wouldn't a fairer comparison be a pleasure yach by Rei · · Score: 1

    No, in a world where private companies own large numbers of oceangoing vessels. First off, private companies designed and built most launch vehicles in the world, just with government funding. Often they manage the launches and stand to profit/lose from each launch, and thus actively promote their vehicles just as though they hadn't had help in building it. Other companies are more independent. Orbital builds and runs the Pegasus, their own rocket. So does SeaLaunch with the Zenit. SpaceX will soon be joining them with the Falcon series, which further has less components derrived from earlier government-funded (but privately developed) launch vehicles. So, no, your analogy is wrong.

    The X-prize supported the development of motorboats made only of designs and materials that cannot be used in oceangoing vessels (the analogy is getting stretched here :) ), while all of these other private companies are cruising the ocean in their *actual* oceangoing vessels.

    --
    "He's a liar whose lawyer is lying about his lying lawyer's lies."
  45. Inspiration by Somegeek · · Score: 1

    None of the points that you mentioned are relevant to 'inspiration' or the point of the post that you replied to.

    The GP never said that Space Ship One was going to 'evolve' into something more, or even that it demonstrated useful technology, just that it might spur someone's imagination. And if that wasn't clear enough he even went so far as to say that SSO would never see orbit. You even used the word 'inspire' in your post, which was the whole point of the original post, but evidently you don't understand what it means. How do you know that it hasn't already inspired some kid who will grow up to build his or her generation's space launch system?

    --
    And as you tread the halls of sanity, You feel so glad to be, Unable to go beyond. I have a message, From another time..
    1. Re:Inspiration by stiggle · · Score: 1

      But modern inspiration is about copying the original with just enough changes not to get hit with patent issues. No need for imagination :-)

  46. Anybody got the engineering drawings... by Eric+Smith · · Score: 1
    of the DC-X (Delta Clipper scale test vehicle)? It already did this and more.

    After a series of successful DC-X tests the idiots then in charge at NASA picked the unproven VentureStar design instead, and it turned out that even NASA couldn't afford to buy enough unobtanium to build a working VentureStar.

    (The DC-X was destroyed by human error in a test, but the vehicle performed well in all the prior tests. There was no good reason not to pursue the Delta Clipper design, other than that apparently the team didn't give NASA bigwigs enough kickbacks.)

    Hmmm... maybe the folks at Armadillo Aerospace can win this one, now that they've completed their new vehicle. Check out the photos, from a distance it looks like something on the cover of a 1940s science fiction magazine. :-)

    1. Re:Anybody got the engineering drawings... by BiggerBoat · · Score: 1

      How long was the DC-X able to fly (hover)? Because if it couldn't do the two "hops" required for this prize with one propellant load, then I doubt it would be able to meet the 30 min. max re-fuel time - I read that its turnaround time was 26hrs, and they set a record with that!

    2. Re:Anybody got the engineering drawings... by Eric+Smith · · Score: 1

      The DC-X fuel capacity was over 18,000 Kg (total H2 and O2). I think that would be sufficient for the Level Two requirements of the proposed challenge rules. The DC-Y would have been a larger vehicle, and would have had significantly longer possible hover time.

  47. You are missing the point by everphilski · · Score: 1

    You missed the point of this competition. The delta-V requirement for the X-Prize mission? The same delta-V reqirement for a lunar landing mission.

    1. Re:You are missing the point by Rei · · Score: 1

      Even the hard contest is 180 seconds of hover. That's 1764 m/s delta-V. Yes, they have to go back to their starting point, but they get to bloody refuel their craft before they do so.

      And as I'm sure you're well aware, the difficulies in scaling up from a low delta-v task to a high delta-v task are anything but linear. This task is a joke by comparison, but they're pretending its the same thing.

      --
      "He's a liar whose lawyer is lying about his lying lawyer's lies."
    2. Re:You are missing the point by satcomdaddy1 · · Score: 1
      The delta-V requirement for the X-Prize mission? The same delta-V reqirement for a lunar landing mission.
      No, the delta-V requirement for a lunar landing is not the same as for a landing on terra firma, ever. This would best be done thru simulation, not thru model rocketry, regardless of the composition of the model. Estes vs a shop-built liquid fueled sub-orbital doesn't matter.
      Building a craft that uses 'rocket' propulsion doesn't make you Goddard or von Braun.
  48. What's a Meter? by TopSpin · · Score: 1

    .49 to .99 furlongs
    3.24E-15 to 6.48E-15 parsecs
    7407 to 14815 M&Ms (13.5mm nominal diameter, plain)

    When a spec utilizes metric units there really is no need to convert from otherwise nice round, sensible figures like 100 and 200 to 328 and 656. While it is true that I, like most US citizens, default to thinking in terms of yards and feet, we're not (contrary to what is often asserted) incapable of coping with the occasional meter.

    --
    Lurking at the bottom of the gravity well, getting old
    1. Re:What's a Meter? by msbsod · · Score: 1

      The meter is defined to be the length of path traveled by light in vacuum in 1/299792458 s [B.W.Petley, Nature 303, 373 (1983)].

      The latest news: the use of metric measurement standards in the United States has recently been authorized by law.
      http://fatty.law.cornell.edu/usc-cgi/get_external. cgi?type=statRef&target=date:nonech:nonestatnum:14 _339
      (39th Congress, Sess. I, Ch. 301, 302. 1866)

  49. Re:Wouldn't a fairer comparison be a pleasure yach by bWareiWare.co.uk · · Score: 1

    I accept you point that the are a lot of commercial vehicles that leave SpaceShipOne in the dust, however that doesn't mean is was not worth while and important.

    A better analogy might be computing:

    Government funded programs created the first computers and established IBM and the seven dwarfs who went on to become a commercial success.

    When the early Commodors and Ataris came out they were useless when compared to the mainframes of the day, and were often dismissed as gimmicks or toys. This seems to be very much where SpaceShipOne fits in.

    We may have to wait for Boeing to react (as IBM did) before we have a useful and cheep commercial space ship. But SpaceShipOne may herald an entirely new market for the space industry.

    (or it might not, but $10m wouldn't buy you one ship's peanut in that industry so what was lost?)

  50. Makes pretty good sense by Gorimek · · Score: 1

    1. Yes, it would take far less propulsion on the moon. Then again, you can use a much lighter prototype on Earth, so it should more or less even out. Besides, there's really nowhere else to go, so we'll have to make do with this planet for now.

    2. You should find some time and place where there isn't much crosswind for the test. There are plenty of such places, including indoors.

    3. Air resistance is pretty negligeble at small speeds, so I don't think the lateral movement part changes much. And gravity doesn't play into that part at all.

    So I think these look like as good a set of criteria that you can get without actually testing on the mooon.

    1. Re:Makes pretty good sense by StikyPad · · Score: 1

      I still don't think it's practical. In response to one of the other posts voicing similar arguments as yours, I posed the question of whether the Apollo lander would work at all on earth, but I didn't receive a response. My guess is that it would not. According to everything on the Wikipedia Apollo Lunar Module, tests were all done in orbit, and flight on earth was simulated using a crane.

      The argument that it's "as close as we can get" just doesn't make sense to me. If you can't simulate any of the environment variables (literally), then the test is almost completely useless. A submarine sucks at traveling on land, but it's not bad for getting around underwater.

    2. Re:Makes pretty good sense by FleaPlus · · Score: 1

      The argument that it's "as close as we can get" just doesn't make sense to me. If you can't simulate any of the environment variables (literally), then the test is almost completely useless. A submarine sucks at traveling on land, but it's not bad for getting around underwater.

      Um... it's not like they're going to take the winning vehicle, toss it on a booster as-is, and see if it'll land on the moon. The thing is supposed to be a technology demonstration. The lunar environment isn't exactly the same as what they'll be testing this thing in, but it'll be close enough that we'll be able to improve our knowledge about what technologies and techniques will work well for lunar exploration.

  51. SpaceDev's lunar lander simulator by FleaPlus · · Score: 1

    SpaceDev, a company which builds microsatellites and propulsion systems (including the rockets on SpaceShipOne) has a neat 3D lunar lander simulator (binary link) on their website. It's kind of neat to play to get an idea of the control side of the problem.

  52. Armadillo Aerospace by Tmack · · Score: 1
    Well, it looks like Carmack and company have this one pretty much nailed. Liftoff!

    Well... once they get their new engines under control, which from the last update looks like it should be soon, they should be able to do this already: they've already done the vertical liftoff/hover/landing, and they have done countless controlled hovers while driving it around with a joystick. Piloting it up, over, and down shouldn't be much more difficult.

    btw, the movie of the liftoff/hover/landing (well, the landing was botched from a single foot landing first with a high cross wind and the engines still on and trying to re-level the ship...but anyway):
    armadilloaerospace.com

    ...and their other "Boosted hop" attempt, which ran out of fuel on the way up:
    armadilloaerospace.com

    And of course, go to the main page and read more news on what they are doing.

    tm

    --
    Support TBI Research: http://www.raisinhope.org
  53. Partnership with NASA; contenders by FleaPlus · · Score: 1

    It doesn't mention this in the article submission, but it should be noted that this $2 million prize is an Alliance Challenge in NASA's Centennial Challenges program. Basically, NASA provides the prize money if there's a winning vehicle, while the X Prize Foundation is responsible for actually organizing the event. NASA has stated that they'd like to offer larger-scale competitions and prizes in the future, but they're trying out these smaller ones first.

    Also, there's already a couple of groups which look like they'll have a decent chance of winning the lunar lander competition, including John Carmack's Armadillo Aerospace (Carmack is the co-founder and lead programmer for id Software). Here's a quote from an article about last year's X Prize Cup Expo, where the ideas for a lunar lander challenge were first being discussed:

    John Carmack, who makes his money as a video-game developer and spends some of it as the leader of Texas-based Armadillo Aerospace, said the lunar-lander challenge "certainly sounds like something up our alley." Armadillo is developing a vertical-takeoff-and-landing rocket capable of bringing passengers to the edge of outer space.

    California-based Masten Space Systems is also working on a vertical-launch craft, and Michael Mealling, vice president of business development, said Masten was interested in both challenges. "It just so happens that the flight plan [for the competitions] matches our development cycle exactly," he told MSNBC.com.

  54. Landings by ericartman · · Score: 1

    Why not just ask the Chinese how they are going to do it? We will spend the next few billion dollars and years in meetings drafting proposals. Return to the moon? HA! that would take commitment and resolve my country doesn't seem to possess anymore. Besides the winning effort to this contest will probably end up in court fighting patent infringement cases well into the next century.

  55. Category, reference by Anonymous Coward · · Score: 0

    Why is this article in the "science" category? We are talking about an engineering task, are we not?
    And why does the /. article refer to a 3rd class space.com article? All information is available in the X Prize announcement.

  56. I am gonna win! by Anonymous Coward · · Score: 0

    competitors will be challenged to build a vehicle capable of launching vertically, travel a distance of 328 to 656 feet (100 to 200 meters) horizontally, and then land at a designated site. A return trip would then occur between 5 minutes and 30 minutes later

    I already got just such a vehicle in mind. It is what some call a "helicopter"

  57. So.... by Espressoman · · Score: 1

    you don't actually have to land on the moon?

  58. Why not on Earth? by grogglefroth · · Score: 1

    After all, the first landing was staged in Nevada. Might as well repeat that phenomenal success!

    --
    Good, Fast, Cheap - Pick any two. - RFC 1925
  59. Deepest pockets wins by Anonymous Coward · · Score: 0

    The contestant whos' sponsor has the deepest pockets will win (just like the last silly X prize). The real innovation came from those who used ingenious methods to overcome financial restraints and still have a competitor. The slackers just took a gob of cash and bought an expensive model of this, attached it to a current expensive model of that (nothing innovative about the products), and bang! you get a winner. I wonder if anyone will bite again this time.

  60. Armadillo by gr8_phk · · Score: 1

    This whole thing sounds like a handout to the folks over at Armadillo Aerospace. They've been doing vertical takeoff, hover, and landing for some time. All they'll need to do is increase their altitude and throw in a command for lateral movement (I think their control system can already do this if they tell it to). So for this one team it's a mater of refining their existing design a bit and just doing it. For everyone else it may be more work.

  61. delta-V is delta-V is delta-V by everphilski · · Score: 1

    It is equvalent; consider the following:

    - Earth: higer gravity, shorter burn.

    - Moon: lower gravity, longer burn.

    Delta-V is Delta-V is Delta-V, doesn't matter if I am on Earth or the Moon or freakin Phobos for that matter. All it is, is a change in velocity. It has nothing to do with ANY local parameter.