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</a> At 1,000mph, the wheels are rotating at over 10,000 RPM (about 170 times a second) and the wheel rims experience 50,000 times the force of gravity. To keep the loads down, Bloodhound但ﾂﾂ冱 wheels need to be as thin as possible, but they must not dig in to the surface, so we need to know how hard the desert is. The wheels should be wide enough to avoid penetrating the surface too deeply, in case we damage the wheels on stones buried under the surface. The wheels also need to be as thin as possible to reduce the aerodynamic drag 但ﾂﾂ� if this is too high, we won但ﾂﾂ冲 get to 1,000mph. Finally (and most importantly for me as the driver), the wheels need to give the right amount of sideways grip on the surface, to give the car stability.
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