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Old 03-16-2005, 03:28 PM   #12
BigV
Goon Squad Leader
 
Join Date: Nov 2004
Location: Seattle
Posts: 27,063
gravity is slightly less, but air pressure is 99% less.

Your parachute would have to be huge!! in testing the parachute for the martian probes, the chute that was designed to deploy at supersonic speeds (think of the wall of air at mach 1) could be simulated at earth's sea level air pressure of merely 80 mph.

So a supersonic free fall on Mars feels as windy as 80 mph earth winds. very windy for sure, but how big must my chute be to make a big enough drag to slow me down to walk-away-from-impact speed?!
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