RCU Forums - View Single Post - Contra Rotating Propeller Drive for f3a 2m Pattern Planes
Old 06-29-2012 | 04:09 AM
  #827  
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 Gavin,

The gearsets are color coded with machined dots on the arms of the driveshaft carrier. Each arm may, or may not, have a dot. The code is interpreted as follows:

0 dots - 9.98:1
1 dot - 10.15:1
2 dots - 10.33:1
3 dots - 10.56:1

The ring gears are coded in the same way.

Brenner ...