Bendix / King KAS-297C Altitude and Vertical Speed Selector

Operating as a panel-mounted control interface within KFC-275 and KFC-325 automatic flight control systems (paired with KCP-220-05 computers and above), it enables the flight crew to preselect target altitudes and vertical climb or descent rates. The unit interfaces directly with encoding altimeters to capture, track, and alert on selected altitude parameters.

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

  • Altitude Preselect & Capture. Allows the pilot to dial in a target altitude and automatically arms the flight control computer to level off upon reaching the selected flight level.
  • Vertical Speed Management. Provides direct selection of vertical climb or descent rates alongside vertical sync and vertical speed hold modes for controlled altitude transitions. 
  • Improved VS Damping. Incorporates updated internal damping circuitry (specific to the -16 dash variant) to smooth vertical speed command transitions and reduce pitch oscillations. 
  • Encoding Altimeter Interface. Reads 11-wire Gray code altitude data and barometric correction inputs (0.40 VDC to 4.2 VDC) from compatible encoding altimeters to maintain precise altitude tracking. 
  • Aural & Visual Altitude Alerting. Generates automated aural alert outputs (2 ± 2 Vp-p into a 500-ohm load) and discrete SonAlert/voice-enable triggers to notify the crew when approaching or deviating from the selected altitude. 
  • Power & Environmental Ratings. Operates on a 9–33 VDC power input (0.7 amps max) and is certified to FAA TSO-C9c, TSO-C52a, and RTCA DO-160B standards up to an operating ceiling of 55,000 feet.

Additional information

Part Number

065-0089-16

Serial Number

1950

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