SoW:BoB DB601 Pitch / MG-FFl

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Steinhilper also wrote about manually changing the propeller pitch. "Of special importance was teaching them how to change the pitch of the propeller to get maximum pull from the engine at high altitude." See attachment (if it works). There is a note at the end of Chapter 16: "This technique of varying the throttle setting and pitch led to a constant rising and falling of engine speed. One of the observations of people in Britain was that you could tell which aircraft were German and which were British because the German engine noise seemed always to be rising and falling - unlike the British engines which seemed to remain constant. This may explain the phenomenon." I've read about that quite a few times over the years.