Home › Forum › Ask A Member › what size prop should i try next??? › Re: what size prop should i try next???
Sometime when pushing a heavy load a 4 blade prop may work out better than a three blade. Like Wayne mention….prop surface area becomes an important factor when pushing heavy loads. I consider your application a fairly heavy load.
For my 1957 35hp motor on a Feather Craft Vagabond I carry a 4 blade 10" X 11" prop for those time when towing someone a long distance. Granted when towing I’m not running high speed but this prop feels like I’ve dropped the motor in 4×4 drive.
Your use of a tach shows you are going to find the best solution for your combination. A point not to be overlooked is that the motor has to be in optimal tune before testing out props. It sounds like yours is but you’ve got to be sure. Otherwise all bets are off.