Auto/Manual Trim; Control Wheel Steering Mode (Cws) - Honeywell KFC 150 Pilot's Manual

2. The V-bar will command the required
pitch to maintain the selected altitude.
The pilot can maintain this altitude
manually by following the V-bar or
engage the autopilot and have it satis-
fy the flight director commands.
3.
The vertical trim switch may be used to
adjust altitude up or down at a maxi-
mum rate of 500 fpm without disen-
gaging altitude hold. (The ALT mode
is canceled by automatic glideslope
capture or by depressing the "ALT"
button.) When the vertical trim switch
is released, the flight director V-bar will
begin to command pitch changes to
maintain the new altitude.
AUTO/MANUAL TRIM
The KFC 150 includes as standard
equipment an automatic and manual elec-
tric trim. The automatic trim allows the KFC
150 system to trim off elevator control sur-
face pressures while the autopilot is control-
ling the elevator through a pitch servo. If the
autopilot is not engaged, and the pilot is
hand flying the aircraft, he can use a manu-
al electric trim switch mounted on the yoke
to trim off elevator control forces.
NOTE: See the Flight Manual Supplement
for detailed instructions on your particular
aircraft.
CONTROL WHEEL STEERING
MODE (CWS)
With the autopilot engaged, control
wheel steering (CWS) allows the pilot to
maneuver the aircraft without disengaging
the autopilot.
To use control wheel steering, depress
the CWS button on the yoke. This releases
the autopilot servos and allows you to
assume manual control while autopilot con-
trol functions are placed in a synchroniza-
tion state. This means that when you
release the CWS button, the autopilot will
smoothly resume control of the aircraft and
fly it to the lateral command you were using
prior to engaging CWS. The vertical com-
mand used by the autopilot will be the one
existing when CWS is released.
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