Propeller question.

[Jeb1971]

I have read that increasing the pitch on a prop by 1" approxmatly decreases top rpm by about 200, and vice-versa.
What difference does increasing the diameter by 1" with the pitch staying the same. For example, how will performance differ on a 13X 19 to a 14 X 19?
Thank You,
John

 

[etransfer]

Re: Propeller question.

I have read that increasing the pitch on a prop by 1" approxmatly decreases top rpm by about 200, and vice-versa.
What difference does increasing the diameter by 1" with the pitch staying the same. For example, how will performance differ on a 13X 19 to a 14 X 19?
Thank You,
John

I recently did this and it was 100 RPMs !