Mars Sample Return |
Mars Sample Return |
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#1
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![]() Member ![]() ![]() ![]() Group: Members Posts: 370 Joined: 12-September 05 From: France Member No.: 495 ![]() |
Next phase reached in definition of Mars Sample Return mission
http://www.esa.int/esaCP/SEMJAGNFGLE_index_0.html |
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#2
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Junior Member ![]() ![]() Group: Members Posts: 99 Joined: 17-September 07 Member No.: 3901 ![]() |
Hi again,
Re the past couple days of comments above, OK fair enough to not read anything into artist conceptions, and fair enough to set a date that may later slip. The source document underlying the July 10 news item is available from the Mars Exploration Program Analysis Group at http://mepag.jpl.nasa.gov. Click MEPAG Analysis Reports, then scroll all the way down to the bottom, to download the Preliminary Planning for an International Mars Sample Return Mission, Report of the iMARS (International Mars Architecture for the Return of Samples) Working Group. This document has 31 authors (the Working Group) and is dated 2008Jun1. The Mars Ascent Vehicle (MAV) is listed as the second item in the table on page 21 (p. 25 of the pdf). The third column, "Technology Development Needed," lists 3 items for the MAV as follows. 1. Propellant and materials for long-duration storage and performance in Mars environment. 2. Launch from low-mass landed platform. 3. Low-mass avionics. "Propellant and materials" development? Strangely, no mention of the need to create and design and build a miniature launch vehicle! The only place in the text I could find mention of the MAV is on page 29 (p 33 of the pdf) which merely says there needs to be a MAV. Other items for the mission are discussed in more detail. The very next page shows a schedule for technology development (Figure 5). Major headings are Orbiter Technology, Lander Technology, and SRF Technology (Sample Receiving Facility in Texas). The MAV should logically be one of the major headings, but it is lumped in as a mere item within Lander Technology. Based on the iMARS report, I again submit that the MAV challenge is way underestimated. There simply is no community of people who have experience building miniature launch vehicles, which is consistent with a lack of lobbying for recognition and funding of the MAV problem. John W. |
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#3
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 ![]() |
There simply is no community of people who have experience building miniature launch vehicles, http://en.wikipedia.org/wiki/RIM-161_Standard_missile_3 http://en.wikipedia.org/wiki/AGM-48_Skybolt http://en.wikipedia.org/wiki/MGM-140_ATACMS There is a large community who've been building vehicles of an approximately similar performance envelope for some time. Furthermore http://www.jpl.nasa.gov/releases/2001/release_2001_153.html http://ieeexplore.ieee.org/Xplore/login.js...5737.pdf?temp=x http://www.ingentaconnect.com/content/els/...000004/art00148 http://www.esa.int/esaMI/Aurora/SEMRW7A5QCE_0.html - especially http://esamultimedia.esa.int/docs/Aurora/e...AV_complete.pdf http://citeseer.ist.psu.edu/385428.html That's from the first page of putting 'mars ascent vehicle' into google. Doug |
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