Eurocopter AS 350 83 Flight Manual page 154

FLIGHT MANUAL
.1~
The three-axis (pitch, roll, yaw) autopilot (AP) is intended to hold
the attitudes and heading selected by the pilot.
Additional IIKJdes can provide:
-airspeed hold,
-altitude hold,
-acquire and hold of heading selected on the HSI.
The AP unit mainly consists of :
-A control panel on the console.
-A co~uter underneath the cabin floor on copilot's side that receives
data from the following detectors:
.
.vertical gyro,
.horizontal situation indicator (HSI),
-.gyro-c~ass,
.air data sensor,
.control pedal displacement detector,
.lateral accelerometer.
-An artificial load release system.
-A control for adjustment of the rudder pedals friction.
-Three control actuators (one per axis).
-Two trim actuators (on pitch and roll axes).
-Three galvanometers (pitch, roll, yaw). I
-Three "disengaged channel" indicating lights (P, Rand Y).
I
-An AP coupler monitoring panel.
-A failure monitoring unit.
This nO>du1e monitors the operation of the pitch and roll channels at
different levels by co..,aring the data delivered from the instrument
panel vertical gyro and gyro horizon:
.Attitude sensors.
.Command inputs generating system.
.Control actuators.
In case of abnormal operation, this unit warns the pilot and cuts out
the defective channel. It starts operating automatically as the AP
pitch and roll channels are engaged.
.
.
DGAC Approved: 350 B3 SUP.16
I A I B I C I F I 97-40 Page 1