In article ,
Joe Maj wrote:
Or, they can tremendously increase it.

Some of the top Mooney shops won't install 3 blade props on 4 cylinder engines.
Too many instances of vibrations that defy all attempts to eradicate them.

Maybe those are caused by owners who believe the 3 blade prop is a smaller
diameter than the stock prop and prang it. ;-)

--
Ben Jackson

http://www.ben.com/