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Titan Rover |
 Dec 31 2005, 02:05 AM
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#1
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 Member  Group: Members Posts: 656 Joined: 20-April 05 From: League City, Texas Member No.: 285  |
Any showstoppers? I would envision something similar to the upcoming Mars Science Laboratory (RTG's are a given). Lot's colder on Titan... rough on lubricants, and parts would be brittle. Not sure whether the organics would pose a problem in the way of gumming up the works, but it doesn't seem likely at liquid methane temperatures. Smaller world, lower gravity, thick atmosphere... I'm inclined to think that a simple copy of the MSL, perhaps with some added insulation, would work just fine. The only alternative I've been hearing about is a balloon-borne probe, but that doesn't allow the same level of geologic prospecting.
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| Guest_BruceMoomaw_* |
Jan 28 2006, 09:55 PM
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#2
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Guests |
QUOTE (EccentricAnomaly @ Jan 28 2006, 06:00 PM) How about a slow lander or glider? With Titan's low gravity and thick atmo, you could do several circuits around the moon before landing... all of this for very little complexity in the vehicle design. Remember that Huygens had to use a third smaller chute to be able to land faster.  I don't see anything you get out of this that you couldn't get much better from a balloon -- even a nonpowered one. |
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Jan 29 2006, 11:49 PM
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#3
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Junior Member Group: Members Posts: 39 Joined: 29-September 05 Member No.: 518 |
QUOTE (BruceMoomaw @ Jan 28 2006, 02:55 PM) I don't see anything you get out of this that you couldn't get much better from a balloon -- even a nonpowered one. No balloon has ever been successfully deployed on another planet. The inflation and the proper envelope material sound like a very complicated problem to solve... and therefore expensive. A slow lander could use a design very similar to Huygens, and it would be much cheaper as a result... and I think the science would be comparable to a balloon. A balloon would cover a small area in more detail, but a slow lander or glider could cover almost the entire surface. I think it would be possible to design something that could take days or weeks to descend with altitudes of 500 km or so above the surface for most of the time, and maybe a day below 500 km on final descent. Also a balloon would require better model of the low altitude winds then I think Cassini or Huygens will provide. I think it would be really hard to design such a system without accepting a risk level comparable to Beagle 2. |
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algorimancer Titan Rover Dec 31 2005, 02:05 AM
Steve G QUOTE (algorimancer @ Dec 30 2005, 07:05 PM)A... Dec 31 2005, 02:13 AM David QUOTE (algorimancer @ Dec 31 2005, 02:05 AM)S... Dec 31 2005, 03:15 AM
ljk4-1 QUOTE (David @ Dec 30 2005, 10:15 PM)And cons... Jan 2 2006, 05:23 AM BruceMoomaw It's being seriously considered -- in fact, fo... Dec 31 2005, 04:27 AM ermar QUOTE it might on balance be preferable to make th... Dec 31 2005, 04:52 AM BruceMoomaw Obviously a Titan orbiter has massive utility as a... Dec 31 2005, 05:29 AM ermar QUOTE you have to land near the north pole, or the... Dec 31 2005, 06:27 AM tasp IIRC, one Voyager style RTG dissipates about 9000 ... Dec 31 2005, 06:29 AM BruceMoomaw That's exactly the plan. (Interestingly, a bl... Dec 31 2005, 09:53 AM algorimancer I'm afraid I don't have a lot of confidenc... Jan 1 2006, 02:34 PM BruceMoomaw Titan balloons have a huge advantage over balloons... Jan 1 2006, 10:04 PM dvandorn QUOTE (BruceMoomaw @ Jan 1 2006, 04:04 PM)As ... Jan 2 2006, 01:24 AM RNeuhaus QUOTE (BruceMoomaw @ Jan 1 2006, 05:04 PM)Tit... Jan 24 2006, 03:22 AM ermar QUOTE How about a hovercraft?
I remember someone ... Jan 2 2006, 06:11 AM BruceMoomaw A hovercraft, however, has one major problem that ... Jan 2 2006, 09:53 AM Bob Shaw Bruce:
A Titan helicopter need look very little l... Jan 2 2006, 01:09 PM tty QUOTE (Bob Shaw @ Jan 2 2006, 03:09 PM)Bruce:... Jan 2 2006, 07:19 PM Bob Shaw FWIW, I believe that the proposed Titan helicopter... Jan 2 2006, 08:54 PM tty QUOTE (Bob Shaw @ Jan 2 2006, 10:54 PM)FWIW, ... Jan 2 2006, 09:17 PM Bob Shaw QUOTE (tty @ Jan 2 2006, 10:17 PM)I'm sti... Jan 3 2006, 02:39 AM ljk4-1 Forget wheels: What about a Dante type crawler - ... Jan 3 2006, 03:35 AM yaohua2000 QUOTE (tty @ Jan 2 2006, 07:19 PM)Power: a RT... Jan 24 2006, 03:07 AM RNeuhaus QUOTE (yaohua2000 @ Jan 23 2006, 10:07 PM)Tit... Jan 24 2006, 03:26 AM tty QUOTE (yaohua2000 @ Jan 24 2006, 05:07 AM)Tit... Jan 25 2006, 06:34 PM EccentricAnomaly QUOTE (tty @ Jan 25 2006, 11:34 AM)CH4 + 2O2 ... Jan 28 2006, 06:01 PM BruceMoomaw Certainly all the proposed Titan rovers or flyers ... Jan 24 2006, 11:11 AM gpurcell I guess the way to think about some sort of floati... Jan 25 2006, 04:42 PM EccentricAnomaly How about a slow lander or glider? With Titan... Jan 28 2006, 06:00 PM The Messenger I vote for a very large parachute, with lots of sc... Jan 30 2006, 01:46 AM Bob Shaw QUOTE (The Messenger @ Jan 30 2006, 02:46 AM)... Jan 30 2006, 08:52 AM Gsnorgathon QUOTE (EccentricAnomaly @ Jan 29 2006, 11:49 ... Jan 30 2006, 06:16 AM EccentricAnomaly I just realized the problem with a slow parachute.... Jan 31 2006, 01:19 PM The Messenger QUOTE (EccentricAnomaly @ Jan 31 2006, 06:19 ... Jan 31 2006, 04:47 PM ljk4-1 How about a robot probe that moves along the groun... Jan 31 2006, 05:21 PM tty QUOTE (EccentricAnomaly @ Jan 31 2006, 03:19 ... Jan 31 2006, 08:01 PM EccentricAnomaly QUOTE (tty @ Jan 31 2006, 01:01 PM)Nix - a pa... Feb 2 2006, 05:44 PM The Messenger QUOTE (EccentricAnomaly @ Feb 2 2006, 10:44 A... Feb 2 2006, 07:26 PM ljk4-1 QUOTE (The Messenger @ Feb 2 2006, 02:26 PM).... Feb 2 2006, 07:31 PM RNeuhaus QUOTE (EccentricAnomaly @ Feb 2 2006, 12:44 P... Feb 7 2006, 08:27 PM EccentricAnomaly QUOTE (RNeuhaus @ Feb 7 2006, 01:27 PM)If my ... Feb 8 2006, 08:44 PM tty QUOTE (EccentricAnomaly @ Feb 8 2006, 10:44 P... Feb 8 2006, 10:15 PM EccentricAnomaly QUOTE (tty @ Feb 8 2006, 03:15 PM)You have a ... Feb 9 2006, 09:53 PM Tom Tamlyn QUOTE (EccentricAnomaly @ Feb 9 2006, 04:53 P... Feb 10 2006, 04:05 PM EccentricAnomaly QUOTE (Tom Tamlyn @ Feb 10 2006, 09:05 AM)Loo... Feb 10 2006, 05:06 PM tty QUOTE (EccentricAnomaly @ Feb 9 2006, 11:53 P... Feb 10 2006, 09:02 PM ljk4-1 QUOTE (BruceMoomaw @ Jan 28 2006, 04:55 PM)I ... Jan 30 2006, 02:55 PM BruceMoomaw QUOTE (EccentricAnomaly @ Jan 28 2006, 06:01 ... Jan 28 2006, 09:56 PM edstrick The Vega mission balloons were 100% successful. T... Jan 30 2006, 08:28 AM BruceMoomaw Well, first, the balloon has already been test-inf... Jan 31 2006, 01:11 AM BruceMoomaw As for a rover with legs instead of wheels: first,... Jan 31 2006, 01:15 AM lyford This sounds like a job for Tumbleweed Rover!... Jan 31 2006, 01:33 AM Bob Shaw QUOTE (lyford @ Jan 31 2006, 02:33 AM)This so... Jan 31 2006, 10:30 AM mchan QUOTE (Bob Shaw @ Jan 31 2006, 02:30 AM)Why d... Feb 1 2006, 07:46 AM Bob Shaw QUOTE (mchan @ Feb 1 2006, 08:46 AM)That woul... Feb 1 2006, 02:00 PM ljk4-1 QUOTE (Bob Shaw @ Feb 1 2006, 09:00 AM)Before... Feb 1 2006, 02:05 PM BruceMoomaw The Titan Organics Explorer design team is now tre... Jan 31 2006, 09:46 PM The Messenger Thanks Bruce,
Any word on instrumentation? Are t... Feb 1 2006, 04:25 AM BruceMoomaw Well, the payload is strictly strawman at this poi... Feb 1 2006, 07:20 AM The Messenger QUOTE (BruceMoomaw @ Feb 1 2006, 12:20 AM)Wel... Feb 1 2006, 04:13 PM lyford DOH - I am sorry Bob - I was too slow. It was eve... Feb 1 2006, 02:49 PM ngunn Has anyone suggested a balloon (or a number of bal... Feb 2 2006, 01:42 PM BruceMoomaw QUOTE (The Messenger @ Feb 1 2006, 04:13 PM)T... Feb 3 2006, 03:10 AM BruceMoomaw Actually, the thinking on a Titan orbiter as a man... Feb 7 2006, 09:32 PM ngunn QUOTE (BruceMoomaw @ Feb 7 2006, 09:32 PM)Act... Feb 8 2006, 01:38 PM dvandorn QUOTE (ngunn @ Feb 8 2006, 07:38 AM)...How ca... Feb 8 2006, 03:01 PM ngunn QUOTE (dvandorn @ Feb 8 2006, 03:01 PM)Man...... Feb 9 2006, 11:33 AM BruceMoomaw The whole point about the roving multiple-landing ... Feb 8 2006, 11:19 PM RNeuhaus QUOTE (BruceMoomaw @ Feb 8 2006, 06:19 PM)The... Feb 9 2006, 04:11 AM Bob Shaw Perhaps the way to deal with the Titan atmosphere ... Feb 9 2006, 09:37 AM ljk4-1 I had to post this link to a science fiction novel... May 2 2006, 09:28 PM BruceMoomaw It looks from Huygens' photos as though the bi... May 3 2006, 01:23 AM Richard Trigaux This is why a flyer was proposed. We don't kno... May 3 2006, 06:05 AM BruceMoomaw This particular note really belongs over in the Ve... May 3 2006, 02:42 PM elakdawalla QUOTE (BruceMoomaw @ May 3 2006, 07:42 AM... May 3 2006, 03:19 PM djellison I wonder what sort of mission design you could do ... May 3 2006, 03:48 PM Richard Trigaux A smaller spacecraft to visit enceladus piggybacki... May 4 2006, 06:03 AM BruceMoomaw I can't help feeling, though, that this is one... May 4 2006, 06:35 AM Richard Trigaux Bruce, this is again the idea of a satellite which... May 4 2006, 07:39 AM BruceMoomaw Well, NASA has decided that, for the next few deca... May 4 2006, 09:52 AM Richard Trigaux Well, Bruce, I understand the argument.
QUOTE (Br... May 4 2006, 12:38 PM BruceMoomaw A subsurface radar sounder (like the one proposed ... May 4 2006, 11:18 PM Richard Trigaux Yes Bruce, I understand that radar sounding Titan ... May 5 2006, 08:03 AM ljk4-1 Has someone considered a Titan airship that would ... May 5 2006, 04:17 PM Richard Trigaux QUOTE (ljk4-1 @ May 5 2006, 04:17 PM... May 5 2006, 04:56 PM |
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