
![[Century] COUNTER GEAR, 8.67:1 RATIO (CN2263F)](http://www.heli-world.com/images/products/PAAAIAFMECPHDICH.jpg)
Convert to a higher rotor speed using an 8.67:1 gear ratio on the Hawk, Falcon, and Raven helicopters. This conversion increases head speed and cyclic response for more aggressive 3D and aerobatic flying.
| Raven 50 | No Requirements |
| Hawk Pro | Constant Tail Drive System (CN2263A) |
53 tooth gear