RCU Forums - View Single Post - Contra Rotating Propeller Drive for f3a 2m Pattern Planes
Old 08-02-2012 | 03:21 PM
  #863  
Brenner
 
Joined: Jul 2007
Posts: 806
Received 12 Likes on 11 Posts
From: Bridgman, MI
Default RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes

Hey Brian,

Here in North America the AMA rule is 2m or less for AMA classes. FAI classes get the 1% tolerance.

Brenner ...