rnbraud Posted September 9, 2005 Share Posted September 9, 2005 (caution newbie) Why do auto conversions require PSRU's. I understand that auto engines rev at a higher RPM, but, is the need to reduce the propellor speed for the sake of the prop or the engine? I guess I am wondering if normal prop cruise speed is between 2500-3000 rpm why not just put a different prop on an auto-conversion which operates at the 4000-6000 rpm range? Or, is it possible to add more smaller blades to a prop, i.e. 5, 6, or 8 blade props of a smaller diameter, which would either slow down the engine or would be able to operate at higher rpms. Just asking. Quote Link to comment Share on other sites More sharing options...
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