SailNet Community - View Single Post - Three Blade Prop
View Single Post
post #2 of Old 10-20-2003
Jeff_H
Moderator
 
Jeff_H's Avatar
 
Join Date: Feb 2000
Location: Annapolis, Md
Posts: 6,897
Thanks: 5
Thanked 148 Times in 121 Posts
Rep Power: 10
     
Three Blade Prop

A couple thoughts here, I believe that cruising speed on a Yanmar 2 GM is closer to 2800 rpm. You are doing your engine no favor operating at a lower speed and you would probably get more speed out of the boat with a higher rpm. If 1500 rpm is the max that the engine will turn then you either have an engine problem or you are over-propped. If you are over proped then the three blade won''t help a bit. A 10 hp diesel engine should push you at close to hull speed in flat water and moderate winds. You would noticable decrease performance with a 3 blade prop.

Jeff
Jeff_H is online now  
Quote Share with Facebook
 
 
For the best viewing experience please update your browser to Google Chrome