G1000/GFC 700 Post Installation Checkout Procedure – Hawker / Beechcraft King Air C90
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Revision 5
1.5.9
GMU 44 Magnetometer
The Garmin GMU 44 Magnetometer senses magnetic field information and sends this data to the GRS 77
ARHS for processing to determine aircraft magnetic heading.
1.5.10
GTX 33 Mode S Transponder
The Garmin GTX 33 Mode S Transponder provides Mode A, C, and S capabilities for ATC, TIS and TCAS I
surveillance requirements. The GTX 33s interface with the No. 1 and No. 2 GIA63W G1000 LRUs via RS-232.
1.5.11
GSA 80 Servo Actuator
The Garmin GSA 80 Servo Actuator is an electromechanical unit that will provide pitch, roll and yaw damp and turn
coordination.
1.5.12
GSA 81 Servo Actuator
The Garmin GSA 81 Servo Actuator is an electromechanical unit that will provide automatic control of the,
pitch trim.
1.5.13
GSM 85/85A
The Garmin GSM 85 and 85A Servo Mounts will attach to an adapter plate, which will mount to an
existing bracket and is responsible for transferring the output torque of the GSA 80 /81 servo actuators to
the mechanical flight control surface linkage.
