TM 55-1510-215-MTF
WARNING
Do not engage the autopilot into large unsatisfied
flight director commands as displayed on the flight
director
control-indicator
or
any
large
mistrim
conditions in any axis.
(1)
Trim aircraft for straight and level flight.
(2)
Heading selector knob (HSI) - Set indicator to aircraft
heading.
(3)
Flight director (FD) switch (autopilot mode controller) -
Press On.
(4)
Autopilot switch (autopilot mode controller) - ON.
(5)
Check autopilot heading preselection as follows:
(a)
Autopilot heading selector knob (HSI) - Set indication
on test heading.
(b)
Heading (HDG) switch (autopilot mode controller) -
Press On.
(c)
Aircraft should automatically turn and roll out on
preselected heading.
(6)
Check altitude control and selection as follows:
(a)
Altitude (ALT) switch (autopilot mode controller) -
Press On.
(b)
Vertical
trim
(DN/UP)
control
(autopilot
mode
controller) - Move to UP and DN positions while
observing that aircraft and pitch trim indicator respond
properly.
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