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Author Topic:   SS Prop
Ed Laning posted 03-29-2002 08:17 AM ET (US)   Profile for Ed Laning   Send Email to Ed Laning  
I wonder what size SS prop is best for my boat. It is a 15' Sport with a 70hp Evinrude. Presently has a 13.25in x 17.0 in aluminum 3-blade. I'd like to switch to a SS to try to pick up a couple miles per hour on top speed. We run pretty light on loading. Does anyone else have a similar set-up and have experience to guide me to a correct selection?
russellbailey posted 03-29-2002 09:41 AM ET (US)     Profile for russellbailey  Send Email to russellbailey     
Almost certainly a 13.25x19. We have the same setup (15 Striper, 1988 Evinrude 70). With a light load, the 13x19 works really well. It is good for general cruising with up to 3-4 people on board. It will work for waterskiing but is a bit tall for that.

I have the original 13.25x19 OMC SST prop that came with our boat. It has very little wear since we mainly ski and it is big for that if you want to slalom much. I don't think it has any scratches at all. Make me an offer if you're interested - my e-mail is in my profile.

where2 posted 04-01-2002 04:33 PM ET (US)     Profile for where2  Send Email to where2     
A lightly loaded 1985 15' Sport with a 70Hp OMC (1985 Johnson), spinning a 13-1/4"x19" OMC SS prop of the same vintage with extra cup added runs 50mph on smooth water (no jack plate, just power trim & tilt). As noted above, this prop is not the prop for pulling a slalom skier from a dead stop. Keep your 17" for skiing, use the 19" for screaming along on smooth water. My 13-1/4"x17" aluminum prop rides around in my cooler with the rest of my USCG gear. That way if I forget to change it when I take off to go skiing, I just have to find a beach. The 19" even worked well this past weekend when I had 450-500lbs of passengers in the boat. The water was far from smooth, so don't ask what WOT was. I was doing 32mph trying to keep pace with a 42' sport fish in front of me cutting the waves... That was fast enough considering the lake conditions!

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