no MARDI images from Phoenix |
no MARDI images from Phoenix |
Nov 20 2007, 04:52 AM
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#16
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Member Group: Members Posts: 428 Joined: 21-August 06 From: Northern Virginia Member No.: 1062 |
You want to know something that's scary. There are 12 thrusters on Phoenix. It's public knowledge, but not well known, that if one of the 12 fails, the landing will fail (Unless maybe if it were at the very end...) Scary, huh? There's risks in everything in spaceflight, but, well, I guess sometimes something has to go...
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Nov 20 2007, 05:38 PM
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#17
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Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Well, that's an example of a completely unavoidable risk; there's just nothing that can be done to mitigate it other than make sure during the design phase that the thrusters are as reliable as possible. The sneaky, scary stuff comes up during systems integration & testing, and with planetary missions there usually isn't enough time to accomplish all the testing you'd like before the launch window (to say nothing of the budget to do it!) That's a big part of the unavoidable risk assumption as well.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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