Garmin GAD 43

The GAD 43 adapter unit offers enhanced autopilot interface capabilities for the G600/G500 flight display systems. It enables AHRS digital attitude/heading reference to be used with selected autopilots in place of costly-to-maintain ADI gyro indicators.


It Thinks Like an Autopilot

Providing analog attitude information for use with third-party autopilot systems, the GAD 43 adapter interfaces with the G500/600 flight display for configuration and alerting, including the GRS 77 remote AHRS unit for attitude, heading, and yaw input information. Thus, for attitude-based autopilots, the GAD 43 can emulate the system’s gyro interfaces (such as the familiar KI-256) with far more reliable AHRS data. Which, typically, allows the existing ADI or attitude gyro to be removed and replaced on the panel with a smaller and more affordable attitude indicator as one’s backup instrumentation.

Enjoy the Simplicity of Industry Standard Interfaces

The GAD 43 is designed as an open architecture system that uses typical XYZ, ARINC 429 and RS-232 interfaces. The GAD 43 also includes analog radar stabilization signals, bootstrap heading output, and a baro altitude correction interface.

Autopilot Gyro EmulationGAD 43eGAD 43
King KI-256 (or equivalent) used on KAP 100, KAP/KFC 150, KAP/KFC 225 and KFC 275YesYes
Collins 332D-11T used on selet AP-65 installationsYesYes
King KVG 350 used on KFC 250, 300 and 275/325YesYes
Century 21, 31, 41 and 2000YesYes


Functionality/CompatibilityGAD 43eGAD 43
Pitch OutputYesYes
Roll OutputYesYes
Heading OutputYesYes
Yaw Rate or Baro CorrectionYesYes
Radar Stabilization OutputYesYes
Altitude Preselector with Collins APS-65; KAP/KFC 150; KFC 275/325; S-TEC 55X, 60-2, 65, PSS. (KFC 200 expected 2nd quarter 2013.)YesNo
Vertical Speed Controller with KAP/KFC 150; KFC 275/325; S-TEC 55X, 60-2 65, PSSYesNo
Dual Analog VOR/LOC/GS Input*YesNo
Analog Radar Altitude InputYesNo
DME Distance InputYesNo
Marker Beacon Lamp InputYesNo
Synchro ADF Input (ARINC 407)YesNo


*Tested with many 3rd party avionics. Contact your dealer for specifics. 

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