Learjet 60 - Autopilot Engage Functions; Flight Control Panel (FCP); Self-Test

Learjet 60

Pilot's
Manual
The autopilot/flight guidance system is active whenever
power is on
the aircraft and both avionics
master switches are on . The
autopilot
may be coupled to either the pilot's or
copilot's flight guidance chan-
nel using the AP XFR and AP
ENG switches on the FCP .
When the
autopilot is engaged, the associated
or on-side PFD will display
steer-
ing information from the on-side
flight guidance channel .
Whenever
the autopilot is engaged, the on-side
PFDcommand bars will display
the steering command and the on-side
instruments may be used to
monitor autopilot performance . When the
autopilot is not engaged,
the
PFD attitude display can be used to manually
fly the airplane in
response to steering commands from the
on-side flight guidance
channel (provided a vertical or
lateral mode is selected) .
FLIGHT CONTROL PANEL (FCP)
Autopilot/flight guidance mode
selection and autopilot
engagement
functions are accomplished
through the glareshield-mounted
FCP .
The controller contains three
groupings of buttons .
The center group-
ing provides the autopilot
selection and engage
buttons as well as au-
topilot status annunciators
. The grouping on the left
provides mode
selection for the pilot's
flight guidance channel and
the grouping on
the right provides mode
selection for the
copilot's flight guidance
channel .
SELF-TEST
The system initiates
a self-test sequence
when the system
is powered
up (LEFT and RIGHT
AVIONICS
MASTER Switches
ON) . If the self-
test sequence
is not successfully
completed, the
autopilot will not
en-
gage and an
"FD" flag will be
displayed on the
PFDs .
AUTOPILOT ENGAGE FUNCTIONS
AP XFR - The AP
XFR is a momentary
push-on/push-off
button
which is used to select the
flight guidance
channel to be
coupled with
the
autopilot . A green
triangle, on the FCP,
will illuminate
and point
to
the side which will
couple to the autopilot,
when
engaged .
AP - The
AP button is a
momentary push-on/push-off
button which
is used
to couple the
autopilot to the selected
flight guidance
channel
.
If the
autopilot passed
the power-up
self-test, the
autopilot will en-
gage
and the green light
will illuminate
and a green AP
- or AP
(as
appropriate) annunciation
will appear
on the primary
flight dis-
plays .
An electrical interlock
in the FCP
automatically
engages
the
yaw
damper whenever the
autopilot is
engaged .
Thereafter, the
yaw
damper may be
independently disengaged
.
PM-123

5- 5 3
Original