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Author Topic:   prop specs.
dicktybee posted 10-17-2002 06:23 PM ET (US)   Profile for dicktybee   Send Email to dicktybee  
I have a 1977 16'7" Whaler "Sport". I have a 90hp Yamaha, 1991 on it and need to know the prop specs. It will top out at 33.4 WOT, by GPS.
whalersman posted 10-17-2002 06:45 PM ET (US)     Profile for whalersman  Send Email to whalersman     

That sounds a little slow..
What Size and Pitch Prop are you runniing now?
How many RPM's are you showing at WOT???
We need a little more info..

Bigshot posted 10-18-2002 10:39 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     
You should be running a 13x17 Stainless.
dicktybee posted 10-21-2002 07:03 PM ET (US)     Profile for dicktybee  Send Email to dicktybee     
Thanks, I'll try a 13x17 stainless and see what that will do.
John from Madison CT posted 10-22-2002 08:18 AM ET (US)     Profile for John from Madison CT  Send Email to John from Madison CT     
Yes, I agree, the prop should be a 17" pitch.

If you are running ~34knots, then it is certainly not all that bad, but I would expect you should get at least 38-40mph.


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