Cessna TURBO CENTURION T210M 1978 Pilot Operating Handbook page 337

PILOT'S OPERATING HANDBOOK
SUPPLEMENT
CESSNA 400 AUTOPILOT
(TYPE AF-420A)
SUPPLEMENT
CESSNA 400 AUTOPILOT
(Type AF-420A)
SECTION 1
GENERAL
Cessna 400 Autopilot (Type AF-420A) is a two axis automatic flight
control system that governs the position of the ailerons and elevators to
provide automatic roll and pitch stability as commanded by the selected
mode of operation. The system also provides for tracking of any magnetic
heading, automatic intercept and tracking of VOR radials and includes
manual turn and pitch command, altitude hold, and NAV 1 or NAV 2
receiver selection. There is no ILS coupler in the autopilot system.
The major components in a standard 400 autopilot system consist of a
control unit mounted in either the lower center stack of the instrument
panel or lower console, a panel-mounted vacuum driven unslaved direc-
tional gyro, and an aileron and elevator actuator. On some aircraft an
optional slaved compass system is offered consisting of a slaved direc-
tional gyro incorporating a built-in slaving indicator that monitors
heading displacement error between the flux detector and the slaved DG, a
remote mounted flux detector and a slaving accessory unit.
The control unit (flight controller) contains .most of the operating
controls for the autopilot. In addition, controls for the directional gyro are
mounted on the front of the gyro and anA/PNAV 1/NAV2selectorswitch
is installed adjacent to the control unit to allow the autopilot to operate in
conjunction with either navigation receiver.
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