I have a 20ft'r. I usually just run with 2 to 3 people on board and that is it. Right now I'm swinging a 14 1/4x19 prop. Fully trimmed I'm getting 5200rpm. I know I'm lugging the engine and I'm trying to get those 300 rpms that the engine would love. Could I go to a 4 blade 14 3/8 by 18 pitch or should I try a 15 x17- standard for my engine? I know I should be making it with the prop I have now ,but I have a Dusky and my haul is heavier than most boats. On top of that...I added a t-top last year so that is more resistance when it comes to the wind.
The reason why I'm asking about the 4 is....I've heard it brings the stern out of the water more and I'm hoping that will be less friction when it comes to my haul and the water when it comes to speed. I've also heard that having a 4 blade might take a little of my top end. My top speed with my current prop is about 41-42 (according to my gps).
The reason why I'm asking about the 4 is....I've heard it brings the stern out of the water more and I'm hoping that will be less friction when it comes to my haul and the water when it comes to speed. I've also heard that having a 4 blade might take a little of my top end. My top speed with my current prop is about 41-42 (according to my gps).
