Join Date: May 2005
Thanked 26 Times in 25 Posts
Rep Power: 12
You might look at ebay or equal for a used folder or equal prop if you go with a 3 blade. A 3 blaed will give you more bite if motoring in currents, and not slow you down as much. If you can find out the prop diam, some like my maxprop, the pitch can be changed, so if you found say a 14" diam 2 blade on ebay for a good price, it functions etc, but the wrong pitch, it can be change in about an hour on a flat work surface or even on the shaft itself. I am not familiar with other folding/feathering props, as I have a max prop.
BUT, it does sound like the prop size or pitch is not correct for your application, and that would be the first thing to figure out, what prop/pitch you should have.
I can do 6.5-6.6 knots with a 13" max prop at max rpm or about 2800 or so with my 16hp twin cyl yanmar, I am about 7000 lbs total. 2000-2500 I am in the mid5-6knot range. I do not have a tach, so I may very well be doing the same speeds as you. BUT, if you top out at 2000 rpms with you motor, you DO need a new prop to deal with this rpm to get you to hull speed.
She drives me boat,
I drives me dinghy!