Isn’t forward motion created by moving more air?
In: Engineering
The ground provides a natural limit to the length of propeller blades in a fixed-wing aircraft, even when stationary. If there is any chance of the plane bouncing, for example in a bad landing, you want even more ground clearance. A propeller striking the ground automatically results in having to disassemble the engine to check for any damage – easily >$10.000 worth of damage even in a small plane.
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