BendixKing KFC 500 - Manual (Page 25)

Cyclic Beep Trim Switch — A
cyclic mounted four-way barrel
switch controls autopilot and flight
director functionality for pitch and
roll command trim. The barrel switch
provides the function of vertical and
lateral command modification for
the autopilot and flight director
modes. With the modes described
below, the switch provides the
following vertical command
functions:
24
NAV Stand-By Switch — Located
on the cyclic, the NAV Stand-By
Switch disengages the flight director
when pressed. The autopilot and
yaw damper remain engaged in the
default modes, Pitch Attitude Hold
and Roll Attitude/Heading Hold.
Force Trim Release Switch —
Mounted on each of the cyclics, the
Force Trim Release (FTR) Switch
provides synchronization of the
flight director pitch and roll axes as
well as releasing the magnetic
brake in the trim actuator. Pressing
the FTR pushbutton decouples
autopilot actuators, if engaged, and
synchronizes the current vertical
and lateral flight director modes.
Upon release of the pilot's FTR
pushbutton, the autopilot servos
reengage and the flight director
commands the current values set in
the active modes. The copilot's FTR
switch functions the same as the
pilot's. In addition, it cancels all
flight director modes.
Cyclic Grip Switch Assembly
1. NAV Stand-By
2. Cyclic Beep Trim
3. Force Trim Release
1
3
2
Flight Director Vertical Command Values
Discrete Command System Response
Pitch Attitude Hold 0.5° per click
Altitude Hold 10 feet per click
Indicated Airspeed Hold 1 knot per click
Vertical Speed Hold 100 fpm per click
Continuous Command
Pitch Attitude Hold Maintains const. acc. profile until release
Altitude Hold 50 feet per second
Indicated Airspeed Hold Five knots per second until release
Vertical Speed Hold 300 fpm per second until release