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-   -   Prop Torque, Pitch change (https://www.offshoreonly.com/forums/general-q/52859-prop-torque-pitch-change.html)

Elite Marine 06-21-2003 09:12 AM

Prop Torque, Pitch change
 
I purchased a prop from a fellow OSO member, thought I was getting a RH roation, ended up a LH rotation. I'm going to try it and see if it works and if it actually counters the engine torque.

I have read about the zincs with the fin on them, would they help reduce the torque effect?

I'm running 28P prop, but want a 29P. The Bravo1 isn't offered in a 29P. Would I be better off buying a 30P and having it detuned to a 29P or buying a 28P and having the pitch increased to 29P?

Blackhawkdn 06-21-2003 08:42 PM

Bravo props are actually 1" less than stated, a 30" is actually 29"

HOUSTONPROP 06-21-2003 10:22 PM

changing pitch on prop
 
when changing the pitch of a prop, it is recomended to change no more than two inches up or down, any more than this will cause blade distortion and it will not perform correct,To me, it does not matter which way you go ,either way requires heat and is alot of work.But when going up you can add cupping which allows you to get a little more than you would if going down in pitch because diamenter is very important to keep.

Darin

Elite Marine 06-21-2003 10:56 PM

So you're saying I'm better off with a 28P than a 30P to make a 29P?

HOUSTONPROP 06-21-2003 11:04 PM

prop pitch /Pantera
 

Originally posted by Pantera24-650HP
So you're saying I'm better off with a 28P than a 30P to make a 29P?
Yep.you are right on the money Pantera /Talk to you later Darin ;)


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