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Garmin GFC 500 Operations

Mode Annunciations​

  • Green: Mode active
  • White: Mode armed

Modes​

  • ROL: Roll mode
    • Holds the current bank angle, between 6 and 30 degrees.
    • If the roll angle is < 6°, the system will roll to wings level
    • If the roll angle is > 30°, the system will roll to 30°
  • PIT: Pitch mode
    • Holds the current pitch angle, between 15 nose down and 20 degrees nose up.
    • If the pitch is outside of these limits, the system will pitch to the limit
  • VS: Vertical speed mode
    • Holds the current vertical speed when the mode is selected
    • Speed is set with the pitch wheel
  • IAS: Indicated airspeed mode
    • Holds the current airspeed when the mode is selected
    • Speed is set with the pitch wheel
  • ALT: Altitude hold mode
    • Holds the current altitude when the mode is selected
    • Minor adjustments in altitude are set with the pitch wheel
  • ALTS: Altitude select mode
    • When armed, the system will capture the selected altitude when the altitude is reached
    • The selected altitude is set the ALT SEL wheel
    • ALTS annunciation will flash when then system is leveling off and transition to altitude hold mode
  • HDG: Heading mode
    • Turns to and holds the selected heading
    • Selected heading can changes with the HDG/TRK knob