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CESSNA 300A AUTOPILOT
PILOT'S OPERATING HANDBOOK
(TYPE AF-395A)
SUPPLEMENT
Figure 1. Cessna 300A Autopilot, Operating Controls and Indicators
(Sheet 1 of 2)
2
1 July 1979
.6
'PILO
T
'S OPERATING HANDBOOK
CESSNA 300A AUTOPILOT
SUPPLEMENT
(TYPE AF-395A)
1.
COURSE DEVIATION INDICATOR - Provides VOR/LOC navigation inputs to
autopilot for intercept and tracking modes.
2.
LOCALIZER REVERSED INDICATOR LIGHT - Amber light, labeled BC, illum-
inates when BACK CRS button is pushed in (engaged) and LOC frequency
selected. BC light indicates course indicator needle is reversed on selected
receiver (when tuned to a localizer frequency). This light is located within the CDI
indicator.
3.
DIRECTIONAL GYRO INDICATOR - Provides heading information to the
autopilot for heading intercept and hold. Heading bug on indicator is used to
select desired heading or VOR/LOC course to be flown.
4.
TURN COORDINATOR - Senses roll and yaw for wings leveling and command
turn functions.
5.
HDG SEL PUSHBUTTON - Aircraft will turn to and hold heading selected by the
heading "bug" on the directional gyro.
6.
NAV INT PUSHBUTTON - When heading "bug" on DG is set to selected course,
aircraft will turn to and intercept selected VOR or LOC course.
7.
NAV TRK PUSHBUTTON - When heading "bug" on DG is set to selected course,
aircraft will track selected VOR or LOC course.
8.
HI SENS PUSHBUTTON - During NAV INT or NAV TRK operation, this high
sensitivity setting increases autopilot response to NAV signal to provide more
precise operation during localizer approach. In low-sensitivity position (push-
button out), response to NAV signal is dampened for smoother tracking of enroute
VOR radials; it also smooths out effect of course scalloping during NAV opera-
tion.
9.
BACK CRS PUSHBUTTON - Used with LOC operation only. With A/P switch
OFF or ON, and when navigation receiver selected by NAV switch is set to a
localizer frequency, it reverses normal localizer needle indication (CDI) and
causes localizer reversed (BC) light to illuminate. With A/P switch ON, reverses
localizer signal to autopilot.
10. ACTUATOR - The torque motor in the actuator causes the ailerons to move in the
commanded direction.
11. NAV SWITCH - Selects NAV 1 or NAV 2 navigation receiver.
12. PULL TURN KNOB - When pulled out and centered in detent, airplane will fly
wings-level; when turned to the right (R), the airplane will execute a right,
standard rate turn; when turned to the left (L), the airplane will execute a left,
standard rate turn. When centered in detent and pushed in, the operating mode
selected by a pushbutton is engaged.
13. TRIM - Used to trim autopilot to compensate for minor variations in aircraft trim
forlateral weight distribution. (For proper operation, the aircraft's rudder trim, if
so equipped, must be manually trimmed before the autopilot is engaged.
14. A/P SWITCH - Turns autopilot ON or OFF.
Figure 1. Cessna 300A Autopilot, Operating Controls and Indicators
(Sheet 2 of 2)
1 July 1979
