Just wanna float this one out there and see what kind of opinions I get...
What makes a better prop for running a small to medium size outboard boat in ocean swells, a higher pitch/smaller diameter or a lower pitch/larger diameter?
My reason for asking is that this summer I had my 22' Auquasport/200hp Johnson out of Freeport. I started out with a 14.5"/19 pitch prop (the factory reccomended). The motor seemed to surge greatly with this combo. Bogged in swells, cavitated off 'em. I later switched to a 15"/17 pitch prop and felt I had better response, albeit these days I went out were also slightly better conditions.
After running tests back in the Sound I found that the 19 pitch only gave me a WOT of 4800 rpm. The manufacture says that I should be between 5000-5500rpm. I switched to the 17 pitch and topped out at 5100 rpm. I know other people with the same setup and they run fine with the 19?
Back to my question, does anyone know why the same setup would run better with the 19 and mine the 17? And are there any suggestions for a prop that is used to run ocean swells as opposed to a chop in the Sound?
I'm would appreciate any experienced opinions. This was the first year I brought my boat out to the south shore. Had a great time, and will definitely do it again. Just gettin the boat to run well out there took some patience. But I made it past the HA, I was happy to get that far. I guess that's my limit till I get a slightly more seaworthy boat......
Thanks again....
What makes a better prop for running a small to medium size outboard boat in ocean swells, a higher pitch/smaller diameter or a lower pitch/larger diameter?
My reason for asking is that this summer I had my 22' Auquasport/200hp Johnson out of Freeport. I started out with a 14.5"/19 pitch prop (the factory reccomended). The motor seemed to surge greatly with this combo. Bogged in swells, cavitated off 'em. I later switched to a 15"/17 pitch prop and felt I had better response, albeit these days I went out were also slightly better conditions.
After running tests back in the Sound I found that the 19 pitch only gave me a WOT of 4800 rpm. The manufacture says that I should be between 5000-5500rpm. I switched to the 17 pitch and topped out at 5100 rpm. I know other people with the same setup and they run fine with the 19?
Back to my question, does anyone know why the same setup would run better with the 19 and mine the 17? And are there any suggestions for a prop that is used to run ocean swells as opposed to a chop in the Sound?
I'm would appreciate any experienced opinions. This was the first year I brought my boat out to the south shore. Had a great time, and will definitely do it again. Just gettin the boat to run well out there took some patience. But I made it past the HA, I was happy to get that far. I guess that's my limit till I get a slightly more seaworthy boat......
Thanks again....