Bendix / King KTA-336 Trim Adapter

Operating as a remote-mounted LRU within automatic flight control systems, this adapter serves as the electrical interface between the flight control computer and the aircraft's electric pitch trim system. It translates low-power autopilot trim commands into high-current drive signals to operate the trim servo motor and maintain out-of-trim aerodynamic neutralization.

Description

This unit has been bench tested by an FAA certified repair station and it comes with an 8130 single release dated 9/23/2026.

Key Technical Capabilities

  • Autopilot-to-Servo Interface. Receives logic-level trim UP and trim DOWN command signals from the flight computer and switches power to drive the electric pitch trim actuator.
  • Manual Electric Trim Integration. Routes manual pilot control wheel trim switch inputs directly to the trim servo while providing an immediate hardware override to disconnect autopilot trim commands.
  • Trim Monitor & Runaway Protection. Continuously monitors trim drive logic and motor current paths to detect uncommanded trim movement, triggering an automatic disconnect and cockpit annunciation during fault conditions.
  • Clutch & Solenoid Actuation. Controls the engagement and release of the trim servo electromagnetic clutch to mechanically couple or isolate the actuator from the aircraft’s primary trim cable system.
  • Compact Remote Footprint. Housed in a ruggedized chassis measuring approximately 4.4″ H x 5.5″ L x 4.5″ W and weighing 2.15 lbs for installation in remote avionics bays.

Additional information

Part Number

065-00164-0100

Serial Number

1842

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