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Operating the
KFC
250
System
There are twelve
(12)
modes of operation
that are provided by the KFC
250
system to
offer the pilot Flight Director/Autopilot com-
mands in response to his selection of desired
modes
on
the Mode Controller.
Most of these modes are activated by
pushbutton switches on the Mode Corltroller.
These pushbuttons operate with alternate
action. The first depression ofthe pushbutton
activates a mode; the second depression
cancels it,
if
it has not already been automat-
ically inactivated. Annunciation of the mode
selected appears on the annunciator panel.
Any operating mode not compatible with
a newly-selected mode will be automatically
cancelled in favor of the pilot’s latest selec-
tion. This lets the pilot advance along his
flight sequence without the inconvenience of
having to manually cancel modes. For
example, if in NAV CPLD mode, selection of
Heading will automatically cancel NAV.
THE BASIC MODE
OF
SYSTEM OPERATION
The system will be in the Basic Attitude
Reference or “Gyro” mode with engines run-
ning and aircraft “power on,” but no modes
selected (Annunciator Panel blank). This
provides indication of aircraft heading on the
Pictorial Navigation Indicator, and roll and
pitch attitude on the Flight Command indi-
cator. The FCI Command V-bar is biased out
of
view.
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