Quote:
Originally Posted by mmartin798
Math seems off. Area of each ellipse is ~50 sq in. Mass 2200 pounds. Total "foot" area is ~100 sq in. Pressure with both feet on the ground about 22 PSI.
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My math was off, I had plugged in major/minor axis where it should have been semi-major/semi-minor. Using the right numbers puts the pressure at 29 PSI / 201 kPa... which is still about the ground pressure of a passenger car.
Still too much? Extend the feet to 15" long and 6" wide (smaller than most snowshoes) and pressure drops to 15.6 PSI / 107 kPa. Extend them to 8"x25" (small snowshoe) and PSI drops to 7 PSI / 48 kPa. Make them 10"x36" (large snowshoe) and PSI is only 3.9 PSI / 27 kPa.
None of those seem unreasonable. Heck, I might give the suit those 6"x15" feet for urban work and then give them attachable foot plates in the larger sizes for off-roading. The suits would still be too heavy for indoors, but that is the only real issue I see with the pressure.