ORIGINAL: matador_24
thanks for the inputs, the manual recommends 11x6-11x8, that is why I have always used 11x7
do you think that the 11x5 would be too low? why does not the manual recommend it???
From what I read on RCU (so you know it must be true), OS prop recommendations are for noise reduction due to regulations in Japan. Props that really load the engines keep rpm down which reduces engine and prop noise.
The recommendations are a starting point for your experimentation. You may try 11x5 and hate it.