I am and have been confused about the prop pitch and hp relationship. If one
is flying at a specific rpm with a 85 hp engine and a
71-51 prop, it is moving a specific amount of air regardless of the weight of
the airplane. I understand that if the engine won't achieve the particular rpm
the prop is not moving the same amount of air. So a 71-48 at 2250 rpm moves
less air than a 71-51 at 2250 rpm. One would think that the 51 pitch would be
better for climb. Is the issue that the engine can't turn the needed rpm in
climb?
Lee
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