GAD 43

Part Number: 010-00724-02
Estimated availability is 1 – 3 business days.
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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 Garmin GDU 620 panel display for configuration and alerting, and with 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.

Simplifies Glass Cockpit Retrofit

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.

Currently, the GAD 43 is approved to support the following gyro emulation:

  • Approved gyro replacement for:
    • King KI 256 (or equivalent) used on KAP 100, KAP/KFC 150, KAP/KFC 200, KFC 225, and KFC 275
    • Collins 332D-11T used on select AP-65 installations
  • Evaluating for future approval:
    • King KVG 350 used on KFC 250, KFC 300, KFC 325 (non-EFIS)
    • Cessna/ARC G519 used on Cessna 300B, 400B and 800B
    • Sperry VG 14A used on SPZ-200, SPZ-500

Garmin GAD 43: Your autopilot gyro has met its match.

In the Box

  • GAD 43 adapter
  • Installation kit

Package contents may vary per version. See your local dealer for more information.


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

Functionality/Compatibility GAD 43e GAD 43
Pitch Output Yes Yes
Roll Output Yes Yes
Heading Output Yes Yes
Yaw Rate or Baro Correction Yes Yes
Radar Stabilization Output Yes Yes
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.) Yes No
Vertical Speed Controller with KAP/KFC 150; KFC 275/325; S-TEC 55X, 60-2 65, PSS Yes No
Dual Analog VOR/LOC/GS Input* Yes No
Analog Radar Altitude Input Yes No
DME Distance Input Yes No
Marker Beacon Lamp Input Yes No
Synchro ADF Input (ARINC 407) Yes No

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