Like Tree0Likes

14.5x32 5 Blade outboard props???

Reply
Old 12-04-2009, 06:08 PM
  #21
Registered
Trade Score: (-1)
 
Join Date: Jul 2006
Location: Boca Raton Fl.
Posts: 540
Default

A very very trick set of four blade 15x31's. Same as the ones I sold to Don (maritime) that he has had so much success with
tzrider is offline  
Reply With Quote
Old 12-11-2009, 12:15 PM
  #22
msm
Registered
 
Join Date: Dec 2009
Location: Grafton, WI
Posts: 28
Default Blade Rake

Quote:
Originally Posted by Brad Zastrow View Post
I guess I have been out of the outboard stuff too long. When I ran the four blade props I lost 5 mph. I would think running 5 blade props will allow a little higher engine height that would offset the stern lift problems I witnessed. The racers are using five blade props but I have yet to see them on a pleasure boat. Maybe that will change now. I am curious what the top speed differences are for three, four or five blade? I was just in a 120 mph 28 Skater a few weeks ago that my friend owns and he runs three blade Mercury lab 15 x 34.
Since rake contributes to a prop's bow-lift / stern-lift characteristics, I wish it would be stamped on the propeller in addition to the amount of pitch. I really don't think the stern lift you mentioned was due to the addition of another blade, but more likely less rake.
msm is offline  
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 07:49 PM.


Copyright 2011 OffShoreOnly. All rights reserved.