Cessna 1980 172RG Cutlass Pilot Operating Handbook page 140

.6
CESSNA 300A AUTOPILOT
(TYPE AF-395A)
Figure 1. Cessna 300A Autopilot, Operating Controls and Indicators
(Sheet 1 of 2)
2
PILOT'S OPERATING HANDBOOK
SUPPLEMENT
1 July 1979
T
'PILO 'S OPERATING HANDBOOK
SUPPLEMENT
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.
TURN COORDINATOR - Senses roll and yaw for wings leveling and command
4.
turn functions.
HDG SEL PUSHBUTTON - Aircraft will turn to and hold heading selected by the
5.
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
f o r l ateral 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
.6
CESSNA 300A AUTOPILOT
(TYPE AF-395A)