Catalogue No: | C0628 |
---|---|
Category: | Flight Control |
Object Type: | Module/Sub-Assembly/Component |
Object Name: | T-45 Motor Drive Card |
Part No: | 7501-00105 |
Serial No: | 003 |
Manufacturer: | GEC Avionics |
Division: | Flight Controls [FCD] |
Platform(s): | T-45 Goshawk |
Year of Manufacture: | circa 1989 |
Dimensions: |
Width (mm): 170 Height (mm): 95 Depth (mm): 24 Weight (g): 178 |
Location: | Rack RAA03 [Main Store] |
Type No. 7501-00105
Ser. No. 003
K0656 A2A2
6742-00479
6752-00524 [blanked]
ET128900
GEC Avionics Limited
A yaw damper is a device used on many aircraft (usually jets and turboprops) to damp (reduce) the rolling and yawing oscillations known as the Dutch roll mode. It consists of yaw-rate sensors and a processor that provides a signal to an actuator connected to the rudder. The use of a yaw damper helps provide a better ride by preventing the uncomfortable yawing and rolling oscillation. On some aircraft it is mandatory for the yaw damper to be operational at all times during flight above a specified altitude.
The T-45 is fitted with a yaw-damping system which takes effect, below 250kts, for stability on the approach through the "burble" (caused by superstructure vortices) over the round-down. This card is a module of the computer for yaw damping and it drives the actuator motor.