Learjet 20 Series Pilot Training Manual page 308

AUTOPILOT EFFORT
INDICATORS
PRIMARY YAW
DAMPER SERVO
SECONDARY YAW
DAMPER SERVO
LEARJET 20 SERIES PILOT TRAINING MANUAL
**
Figure 15-11. Yaw Damper System
FOR TRAINING PURPOSES ONLY
FlightSafety
AUTOPILOT FLIGHT
CONTROLLER
**
SELECTOR SWITCH
* ALL MODELS
** 25 SERIES AIRPLANES
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15-17