I have been trained in a single engine fixed pitch prop ( C152). I'm trying to move to Piper Arrow II which has an adjustable pitch propeller. I understand how constant speed propellers work. I'm trying to understand how to use this new feature in cruise flight.
My understanding is that in the highest RPM configuration, the propeller will provide the highest thrust. This implies that the lower RPM will result in lower thrust ( true? ). If the objective is to get to the destination in the shortest possible time ( the most common objective ) why would anyone want to mess with the pitch of the propeller?
I understand that using a lower RPM may have other advantages like lower engine temperature, lower noise and possibly longer engine life. I'm hoping there is an answer like: ( you can reduce the pitch but maintain cruise speed ..) :) OR for a significant reduction in noise level you will sacrifice 5kts in speed.
This answer doesn't answer my question.