Prop Dia.

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user 21074

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After changing prop pitch from 11 to 13 I was able to drop rpms to a degree but wanted to try a 15 pitch but I have a 10.5 inch diameter and have located a almost new prop cheap I may buy that is 10x15.Does prop diameter just on its own cause a drop possibly in Rpm?
 
newyota said:
After changing prop pitch from 11 to 13 I was able to drop rpms to a degree but wanted to try a 15 pitch but I have a 10.5 inch diameter and have located a almost new prop cheap I may buy that is 10x15.Does prop diameter just on its own cause a drop possibly in Rpm?

Diameter will decrease with an increase in pitch, that is with any prop for a given application.
 

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