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 ...