O.S. Engines Support Ask Bill Baxter your questions about O.S. Engines.

O.S. 1.08 prop

Reply
Old 02-17-2013, 08:04 AM
  #1
W.P. Hurst
Thread Starter
 
Join Date: Nov 2006
Location: pulaski, VA
Posts: 24
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default O.S. 1.08 prop

Bax, I use a 15x8 prop with the 1.08. Would a 14x9 three blade work as well? Need a bit of clearance. Pulling about 10lbs.
W.P. Hurst is offline  
Reply With Quote
Old 02-18-2013, 07:07 AM
  #2
Bax
 
Join Date: Apr 2002
Location: Monticello, IL
Posts: 19,479
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: O.S. 1.08 prop

A 14 x 9 3-blade propeller would actually be much more load on the engine than the 15 x 8 prop you were using. You may need to go smaller, like a 14 x 7 or 8 3-blade, or even a 13 x 8 3-blade. You want the engine turning the same RPM as before, and then you need to adjust for how the airplane performs.
Bax is offline  
Reply With Quote
Old 02-18-2013, 12:05 PM
  #3
W.P. Hurst
Thread Starter
 
Join Date: Nov 2006
Location: pulaski, VA
Posts: 24
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: O.S. 1.08 prop

OK, I'll try the 13x8 3blade.
W.P. Hurst is offline  
Reply With Quote
Old 03-19-2013, 10:02 AM
  #4
W.P. Hurst
Thread Starter
 
Join Date: Nov 2006
Location: pulaski, VA
Posts: 24
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: O.S. 1.08 prop

Went with a 14x7 3 blade. Turns about 10,600rpms.
W.P. Hurst is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

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



All times are GMT -8. The time now is 04:35 AM.