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 ![]() |
Thanks for the analogy. Yes, the people who set the oven to "preheat" were planning a recipe that turned out to take longer to mix, and they made incorrect assumptions about availability of ingredients. Translating back to MSR, one assumption is that engineering is always a procedural activity, even though there is often a need for iterative creative design-build-test to find what will work.
In addition to MAV capability being beyond the state of the art for small rockets, the Capture, Containment, and Return System (CCRS) in Mars orbit was more than a year behind schedule as of late 2023, according to a report from the NASA Inspector General (IG) on 2024Feb28. https://oig.nasa.gov/docs/IG-24-008.pdf Page 25 of the IG report explains the importance of not being too heavy to fly, in regards to the CCRS. Strangely there is no mention of the MAV being heavier than expected. Searching the PDF turns up "CCRS" in 84 places, while "MAV" appears only 14 times, referred to as "a rocket" with no further details. I agree that the sampling by Perseverance is an asset that will make it worth the effort to push MSR forward. |
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#3
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Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 2520 Joined: 13-September 05 Member No.: 497 ![]() |
In addition to MAV capability being beyond the state of the art for small rockets... This has been a common theme of yours over the past many many pages of this thread, but the OIG report doesn't highlight anything about MAV development being a concern (other than a $45M budget increase from a MAV motor contractor, page 22). The mass margin discussion on page 25 is about the ERO and its launch and has nothing to do with the MAV. You may well be right about potential eventual problems with MAV development, but the program has run into plenty of trouble without that worry! -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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