http://tech.groups.yahoo.com/group/marsdrivemission/ MarsDrive Mission Design Tue, 10 Nov 2009 07:16:37 GMT chtftv http://tech.groups.yahoo.com/group/marsdrivemission/message/2341 http://tech.groups.yahoo.com/group/marsdrivemission/message/2341 Message Alert - You Have 1 Important Unread Message! http://daisukeftk.zoomshare.com/files/sexygirl.htm Mon, 09 Nov 2009 21:19:17 GMT David http://tech.groups.yahoo.com/group/marsdrivemission/message/2340 http://tech.groups.yahoo.com/group/marsdrivemission/message/2340 Spacenut, Thanks - good to know you are still here. I am not sure I completely understand your message. Regarding the site Ron proposed Mawrth in "Mission Plan Mon, 09 Nov 2009 04:22:15 GMT spacenutnewmars http://tech.groups.yahoo.com/group/marsdrivemission/message/2339 http://tech.groups.yahoo.com/group/marsdrivemission/message/2339 Yes still here Dave and I did get the most recent update to download without error finally. I a still reading but to get back to the problems in the next few Sun, 08 Nov 2009 21:57:00 GMT David http://tech.groups.yahoo.com/group/marsdrivemission/message/2338 http://tech.groups.yahoo.com/group/marsdrivemission/message/2338 Mike, Problematic, isn't it! Ron's MP III called for two vehicles semi-permanently coupled, driven by a crew of two. If one of the pair fail, the crew Sat, 07 Nov 2009 23:18:48 GMT Michael Bloxham http://tech.groups.yahoo.com/group/marsdrivemission/message/2337 http://tech.groups.yahoo.com/group/marsdrivemission/message/2337 Sorry, I meant to say a crew of four, not six. Hang-on, If the crew is only four and two stay at the fixed base while the other two explore, then why do we Sat, 07 Nov 2009 22:59:30 GMT Michael Bloxham http://tech.groups.yahoo.com/group/marsdrivemission/message/2336 http://tech.groups.yahoo.com/group/marsdrivemission/message/2336 Yes thats fine. By the way you mentioned it it sounded like we were reverting back to the old fixed-base first + dinky rover (aka "ISS on mars") paradigm in Sat, 07 Nov 2009 11:22:34 GMT David http://tech.groups.yahoo.com/group/marsdrivemission/message/2335 http://tech.groups.yahoo.com/group/marsdrivemission/message/2335 Mike, Thanks. Regarding the fixed base I had thought that the consensus (which perhaps you didn't yourself agree with) was that for the first mission we sould Sat, 07 Nov 2009 09:51:35 GMT Michael Bloxham http://tech.groups.yahoo.com/group/marsdrivemission/message/2334 http://tech.groups.yahoo.com/group/marsdrivemission/message/2334 I'm still here .   Re: fixed base: I thought that we established that a fixed-base-first mission plan wasn't the way we wanted to go. They limit our ability Sat, 07 Nov 2009 09:16:58 GMT David Gooding http://tech.groups.yahoo.com/group/marsdrivemission/message/2333 http://tech.groups.yahoo.com/group/marsdrivemission/message/2333 Is there anybody still there?   I am trying to work out what to do next.   I think that it would be useful to establish a list of everything that is needed Sun, 01 Nov 2009 18:45:11 GMT David Gooding http://tech.groups.yahoo.com/group/marsdrivemission/message/2332 http://tech.groups.yahoo.com/group/marsdrivemission/message/2332 Dear All,   Attached is an updated one - some sections have been significantly re-written and I have included the sizing spreadsheet as an embedded Excel file Fri, 30 Oct 2009 17:32:47 GMT David http://tech.groups.yahoo.com/group/marsdrivemission/message/2331 http://tech.groups.yahoo.com/group/marsdrivemission/message/2331 Mike, Another thought - I've re-run my model calcs for different power densities to see how sensitive we are. For the 12 tonne vehicle using 5kW/tonne gives us Fri, 30 Oct 2009 17:03:45 GMT David http://tech.groups.yahoo.com/group/marsdrivemission/message/2330 http://tech.groups.yahoo.com/group/marsdrivemission/message/2330 Mike, I just got data off the internet for commercially-available flexible solar arrays. Many of these run about 1kg per square metre. There seem to be two Fri, 30 Oct 2009 05:11:39 GMT Michael Bloxham http://tech.groups.yahoo.com/group/marsdrivemission/message/2329 http://tech.groups.yahoo.com/group/marsdrivemission/message/2329 Dave,   I'm still thinking the power to mass ratios of our unfurlable solar arrays are far too optimistic. We're looking at something like 20kW per tonne Wed, 28 Oct 2009 19:09:25 GMT David http://tech.groups.yahoo.com/group/marsdrivemission/message/2328 http://tech.groups.yahoo.com/group/marsdrivemission/message/2328 Harold, We can always revert to an older technology - when I've done the tidy up I can print a copy and post it to you if you email me your address! Printing Tue, 27 Oct 2009 22:18:18 GMT David Gooding http://tech.groups.yahoo.com/group/marsdrivemission/message/2327 http://tech.groups.yahoo.com/group/marsdrivemission/message/2327 Here's the same document saved as Word 97 and zipped to make it a bit smaller since it was 13 MB otherwise.     Here's the same document saved as Word 97 and