ORIGINAL: orenda635
........ Theoretically, the plane will travel that many inches per rotation of the prop. So say if I've got a 10x6 prop, the plane will travel 6 inches per rotation........
the problem with theories are they seldom hold true in real world applications. I've had several planes that would go faster then the theoretical max speed the prop would pull it doing the pitch x rpm equation, and that was even using the true in flight RPM.
kc