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uAvionix AV-APA Experimental Analog Port Adapter for Legacy Autopilots

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Part# 11-20187
MFR Model# UAX-90102-01


The AV-APA (analog port adapter) accessory enables aircraft owners with legacy autopilots to replace their old, heavy, vacuum-driven directional gyro with a more capable, lighter, digital AV-30 and potentially remove their vacuum system entirely.

The AV-APA emulates the analog heading signal used by legacy autopilots to provide heading hold as well as the ability to follow GPS tracks from a portable or IFR GPS.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Supported Modes include: GPS Desired Track, GPS Track Hold, GPS Bearing, GPS Steering (GPSS*)
  • Supported Autopilots include: S-TEC Systems 20/30/40/50
  • AV-APA Installation Kit includes connectors, connector housings, and pins
  • New modes and supported autopilots coming soon
  • *Available when installed with AV-HSI and associated software unlock.


  • Input Voltage Nominal: +10 to +32 VDC
  • Input Voltage Max: +60 VDC
  • Input Power Nominal: 6 Watts (0.5 Amps @ 12VDC)
  • Input Power Max: 12 Watts (1.0 Amps @ 12VDC)
  • Required Circuit Breaker: 2 Amp
  • Operation on Battery: 2 Hours Typ @ 20C / 30 Minutes Min @ -20C

  • Physical Attributes
    • Mounting Configuration: 3 1/8 Round Instrument Hole
    • Dimensions wo/Connector: 3.38 x 3.38 x 1.6 Inches
    • Weight: 0.50 Lbs.
    • Electrical Connector: 15 Pin Male D-Sub
    • Pneumatic Connectors: OD Quick Connect
    • Mounting: (4X) #6-32 Machine Screws
    • Case Material: Billet Aluminum
  • Environmental
    • Operating Temp: -20C to +55C
    • Storage Temp (48 Hrs): -30C to +80C
    • Humidity (48 Hrs): 90% RH
  • Display
    • Diagonal Size: 3 Circular
    • Contrast Ratio (Typical): 500
    • Brightness (Typical): 1000 cd/m2
    • Viewing Angle Left/Right:60
    • Viewing Angle Up: 45
    • Viewing Angle Down: 10
    • Backlight Lifetime (Typical): 50,000 Hrs



Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.