http://tech.groups.yahoo.com/group/marsdrivemission/ MarsDrive Mission Design Sat, 04 Jul 2009 17:31:03 GMT davidgooding16 http://tech.groups.yahoo.com/group/marsdrivemission/message/1741 http://tech.groups.yahoo.com/group/marsdrivemission/message/1741 Yes. There are a number of possibilities as you point out. What you do depends on a number of constraints and trade-offs. For example a Mars ascent and Earth Sat, 04 Jul 2009 01:32:07 GMT spacenutnewmars http://tech.groups.yahoo.com/group/marsdrivemission/message/1740 http://tech.groups.yahoo.com/group/marsdrivemission/message/1740 To all what do we think a MAV is? The Mav as I take it comes in a few different configurations... They also are for duiffering periods of use.... 1 combo ISPP Sat, 04 Jul 2009 00:07:47 GMT frank_stratford http://tech.groups.yahoo.com/group/marsdrivemission/message/1739 http://tech.groups.yahoo.com/group/marsdrivemission/message/1739 To answer your question Dave G, yes, we should be designing for an integrated campaign where each part is building in the previous mission, trying our best not Fri, 03 Jul 2009 23:38:41 GMT spacenutnewmars http://tech.groups.yahoo.com/group/marsdrivemission/message/1738 http://tech.groups.yahoo.com/group/marsdrivemission/message/1738 Sorry for the delay in replying.... "What are we trying to achieve by driving from place to place in the mobile hab?" I would think that it is fairly straight Fri, 03 Jul 2009 23:31:58 GMT spacenutnewmars http://tech.groups.yahoo.com/group/marsdrivemission/message/1737 http://tech.groups.yahoo.com/group/marsdrivemission/message/1737 First sorry for the long waiting in replying to the questions.... From cargo lander to cargo lander and to explore near the route to which the crew would drive Fri, 03 Jul 2009 21:52:15 GMT davidgooding16 http://tech.groups.yahoo.com/group/marsdrivemission/message/1736 http://tech.groups.yahoo.com/group/marsdrivemission/message/1736 Frank - I absolutely agree - your three goals make sense and I agree with David W's suggested way ahead. I have only one reservation - are we designing a Thu, 02 Jul 2009 12:56:18 GMT frank_stratford http://tech.groups.yahoo.com/group/marsdrivemission/message/1735 http://tech.groups.yahoo.com/group/marsdrivemission/message/1735 On goal 2 for example- "A secure and resource rich base"- this is good for many reasons- Safety being one, and keeping costs down due to increased ISRU. But if Thu, 02 Jul 2009 12:40:18 GMT frank_stratford http://tech.groups.yahoo.com/group/marsdrivemission/message/1734 http://tech.groups.yahoo.com/group/marsdrivemission/message/1734 On the mission aims and goals issue- For the general architecture- The answer is not that easy unfortunately. Mike and others say "science return and safety" Wed, 01 Jul 2009 23:25:32 GMT Michael Bloxham http://tech.groups.yahoo.com/group/marsdrivemission/message/1733 http://tech.groups.yahoo.com/group/marsdrivemission/message/1733 Well, what I had imagined wasn't too dissimilar from the vehicle illustrated in NASAs DRM5 presentation (below). However, I would imagine a more conventional Wed, 01 Jul 2009 23:08:25 GMT Michael Bloxham http://tech.groups.yahoo.com/group/marsdrivemission/message/1732 http://tech.groups.yahoo.com/group/marsdrivemission/message/1732 As I imagine it, I guess that would be one Ares V class launch per MobileHab + TransHab stack (CEV docks in orbit later). And 3-crew MAVs so two of those per Wed, 01 Jul 2009 22:44:08 GMT Michael Bloxham http://tech.groups.yahoo.com/group/marsdrivemission/message/1731 http://tech.groups.yahoo.com/group/marsdrivemission/message/1731 Dave G,   I was thinking one heatshield per MobileHab, with a TransitHab behind it, and the MAV is a seperate vehicle. The MobileHab and TransitHab remain Wed, 01 Jul 2009 21:28:17 GMT davidgooding16 http://tech.groups.yahoo.com/group/marsdrivemission/message/1730 http://tech.groups.yahoo.com/group/marsdrivemission/message/1730 Mike, why don't you sketch out a few concepts, scan them and post them for us? The whole thing (including landing deck, descent fuel tanks (though these might Wed, 01 Jul 2009 21:17:06 GMT davidgooding16 http://tech.groups.yahoo.com/group/marsdrivemission/message/1729 http://tech.groups.yahoo.com/group/marsdrivemission/message/1729 Mike - OK - but that would give us an extra launch. And we'd need a bigger transit hab, and that'd mean a bigger MDS, which have to be captured into Mars Wed, 01 Jul 2009 04:04:53 GMT Michael Bloxham http://tech.groups.yahoo.com/group/marsdrivemission/message/1728 http://tech.groups.yahoo.com/group/marsdrivemission/message/1728 Ah I know what it is... I'm thinking too big: A 5m dia x 9m length cylinder is really huge!   Okay, so mass is our limiting factor, not volume. What is the Wed, 01 Jul 2009 03:58:34 GMT Michael Bloxham http://tech.groups.yahoo.com/group/marsdrivemission/message/1727 http://tech.groups.yahoo.com/group/marsdrivemission/message/1727 I'm confused... Isn't 10m^3 quite a small amount? A 5m dia x 9m length cylinder is about 160m^3 no? That is nearly 80m^3 per person for a 2-person mobile