Quote:
Originally Posted by Rabb
Well, it is actually the other way around.
Prop pitch (together with throttle) is reduced in dives to prevent engine over-revving and subsequent damage, an to slow a dive a bit. Increasing prop pitch should reduce drag (propeller blades are more aligned with airflow), and thus enable (just for a bit) better speed gain. But it has to be controlled within engine RPM limit.
Of course, exact relations depend on aircarft's speed and throttle setting.
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You both actually stated the same thing.