[Public-list] Prop required for a repower

[Hugh McCormack]

Hello Chuck,

The following two links may have the advice you are seeking:

http://www.alberg30.org/collaborate/YanmarEngine

http://www.alberg30.org/maintenance/MechanicalPropulsion/Propeller

The second link is to an article by Don Campbell and contains an Excel 
spreadsheet that will offer prop size suggestions.

Cheers,

Hugh


>From: <thomascwcj at bellsouth.net>
>
>I have an Alberg 30 with a Yanmar 3YM20. The shaft is 7/8" and I'm 
>wondering what is the best three bladed prop alternative in order to 
>realize maximum efficiency. The current two bladed prop is that which was 
>used with the old A-4 (a 12"x9"...I think). I've read that, considering the 
>aperture size, a three bladed 12"12" might be the best alternative. Anybody 
>have any advice and/or experience with a similar situation? Thanks.
>Chuck

_________________________________________________________________
Your Space. Your Friends. Your Stories. Share your world with Windows Live 
Spaces. http://discoverspaces.live.com/?loc=en-CA


 1171412844.0