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BendixKing KFC 500 User Manual

Page 11

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10

attitude. Roll attitudes of less than six
degrees of bank will cause the Flight
Director to revert to commands for
roll-level flight with heading hold.

Activating Discrete or Continuous

Lateral Command has the following
effect upon command values in flight
director operations:

Flight Director Lateral Command Values

Discrete Command

System Response

Roll Attitude Hold

First Click=6°, Subsequent=1° per click

Heading Select

1° Heading Bug Movement per click

Continuous Command

Roll Attitude Hold

Constant Roll Rate

Heading Select

15° Heading Bug Movement per second

Vertical Command Control

Using the same cyclic switch as

mentioned in the previous para-
graph, vertical commands can be
modified by moving the vertical com-
mand switch fore and aft. Operation
of the Vertical Command Control
depends on the flight director or
autopilot mode engaged. Moving

the switch forward adjusts the heli-
copter’s pitch attitude downward,
while moving it rearward adjusts the
attitude upward.

Activating Vertical Command

cancels certain flight director vertical
tracking modes, but has no effect on
modes engaged in the Arm phase.
The flight director will revert to Pitch
Attitude Hold if it was coupled in
Glideslope, Altitude Capture or Go-
Around at the moment of command
activation. Attitude Hold, Altitude
Hold, Indicated Airspeed Hold and
Vertical Speed Hold will remain cou-
pled throughout Vertical Command
operation.

Activating Discrete or Continuous

CBT

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