Moderated Discussion Areas
ContinuousWave: Whaler Repairs/Mods
Prop Selection for 13'
|Author||Topic: Prop Selection for 13'|
posted 10-13-2002 01:47 PM ET (US)
I have a 13' BW. Currently I have a Stainless prop that reads A5 15P. It measures 5" from center of drive shaft to end of 1 blade.
My problem seems to me that when I have me and 1 other person, it takes a little while to plane. Once it planes out, it has ok top speed. I have a doel fins on the cavitation plate.
Is this the correct prop for a 35hp Merc on a 13' boat.
posted 10-14-2002 09:55 AM ET (US)
I would say a 13" for a 35hp. That is not the most powerful engine made.
posted 10-14-2002 01:27 PM ET (US)
mine is currently a 10 1/8" with 15 pitch. What would the results be if I moved to a 13 pitch. All catalogs for my engine show 10 1/8" x 13Pitch.
posted 10-14-2002 02:11 PM ET (US)
better holeshot and higher RPM's. Are you running a tach?
posted 10-14-2002 03:11 PM ET (US)
not running a tach. I need a better hole shot. Seems like it takes a little while to plane with 2 people and fishing gear. Top speed now is ok (no speedometer). I know going to the 13P I would lose a little top end, but I would like better hole shot.
posted 10-14-2002 06:05 PM ET (US)
Should I go up in size to a 12" and if so, what pitch.
The prop I have now 10" 15pitch looks really small. I have about 3.5-4" clearance between the blade and cavitation plate / blade and bottom of skeg.
I'm not too interested in top end speed (of course fast is fun), I really want to get on a plane faster.
posted 10-14-2002 06:31 PM ET (US)
Hi keltonkrew, a stainless 10 X 13 would give you a better hole shot but at considerable top end expense. When I am by myself, in my 1984 13SS my 10 X 15 stainless steal prop works great, but when I have others in the boat with me, and change to my stainless 10 X 13 I plane faster but at top end the prop "slips," so I have to back off on the throttle. My advice, stay with what you've got.
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