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-   -   20sf Prop?` (http://www.classicseacraft.com/community/showthread.php?t=24555)

eggsuckindog 10-29-2012 06:38 PM
I have always used 3 blades, they actually didn't make 4's years ago but I don't think most 20' boats need 4's except for maximum hole shot

Fr. Frank 10-29-2012 11:49 PM
Quote:
Originally Posted by eggsuckindog (Post 208981)
I don't think most 20' boats need 4's except for maximum hole shot
Absolutely right. 4 blade prop increases stern lift by 30% over a similarly configured 3-blade, but reduces top end and mid-range efficiency. 4 blades are for hole shot, lower-speed handling and maneuverability.


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