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The GAD 43e adapter unit offers enhanced autopilot interface capabilities for the G600/G500 TXi flight display systems. Like the GAD 43, the GAD 43e can enable AHRS digital altitude/heading reference with selected autopilots in place of costly-to-maintain ADI gyro indicators. The GAD 43e can also interface to analog VOR/LOC/GS receivers, and functions as an altitude preselector and vertical speed controller when interfaced with compatible autopilots. It will even enable the display of marker beacon lamps, DME distance, synchro ADF bearing and analog radar altitude on your G500/600 TXi. These new interface capabilities work to reduce the workload of the pilot.

Add Autopilot Interface to Your Installation

Providing analog attitude information for use with a wider array of third-party autopilot systems, the GAD 43e 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 43e can emulate the system’s gyro interfaces (such as the familiar KI-256) with far more reliable AHRS data. This 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.

The GAD 43e allows owners to keep their existing analog NAV radios and display VOR/LOC/GS on their G600/G500 TXi flight display system. When interfaced to eligible autopilots, the GAD 43e functions as an altitude preselector and vertical speed controller. It also enables the G600/G500 TXi flight display system to incorporate marker beacon lamps, DME indicators, synchro ADF bearing pointers and analog radar altimeter indicators.

Enjoy the Simplicity of Industry Standard Interfaces

The GAD 43e is designed as an open architecture system that uses typical XYZ (ARINC 407), ARINC 429 and RS-232 interfaces. It also includes analog radar stabilization signals, bootstrap heading output and a bar altitude correction interface.

Autopilot Gyro Emulation

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


  • Pitch Output
  • Roll Output
  • Heading Output
  • Yaw Rate or Baro Correction
  • Radar Stabilization Output
  • 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.)
  • Vertical Speed Controller with KAP/KFC 150; KFC 275/325; S-TEC 55X, 60-2 65, PSS
  • Dual Analog VOR/LOC/GS Input*
  • Analog Radar Altitude Input
  • DME Distance Input
  • Marker Beacon Lamp Input
  • Synchro ADF Input (ARINC 407)
*Tested with many 3rd party avionics. Please contact Sarasota Avionics for specifics.

  • GAD 43e adapter
  • Installation kit

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Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.