Cessna 172P - CESSNA 200 A AUTOPILOT (Type AF-295 B)

PILOT'S OPERATING
HANDBOOK
SUPPLEMENT
14
CESSNA
2OOA
AUTOPILOT
(TYPE AF-3958)
SUPPLEMENT
CESSNA
NAVOMATIC
2OOA
AUTOPILOT
(Type
AF-29581
sEcTloN
I
GENERAL
The Cessna 2004
Navomatic is
an all electric,
single-axis
(aileron
control) autopilot system
and
directional
stability.
Components
are
coordinator,
an
aileron aotuatór,
and a c
incorporating
a
looalizer reversod
(BC)
indicator
light
Roll and
yaw
motious
of the airplane
are sensed
by
the turn
ooordina-
tor
gyro.
The computor-amplifier
electronically
computes
ühe
neoesÊary
correction
and signals the a,otuetor
to move
the ailerons
to
maintain
the
airplano in
the
commanded
lateral attitude.
The
actuator
inoludes a thermostatic
switch
which
monitors
the
operating temperature
of tbe motor.
If the temperature
becomes
abnornal,
the thermostatic
switch opens and disengages
tùre
autopilot
to remove
power
from the
actuator. After
approximately
1O minutes,
tho
switch will
automatically
olose to reapply
power
to the
actuator
a¡rd
autopilot
system.
The 2004 Navomatic
will also capture
and
track
a
VOR,
or
localizer
course usiag signals
trom a
VHF
navigation
receiver.
The
operating oontrols
for tbe
Cessna
2004
Navomatic
arelocated
on
the front
panel
of t|re computer-amplifier,
shown
in
F igure
1.
The
primary
function
pushbuttons
(DIR
HOLD,
NAV CA.PT,
and
NAV
TRK),
are
interlocked
so thatonly
oue functÍon
canbe seleoted
at atime.
TheHI
SENS
and BACK
CRS
pushbuttons
are
not interlocked
so
tha,t either
or both
of
these functions
ca,D be selected
at
any
time.
80
May 1980
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