Cessna Hawk XP R172K Pilot Operating Handbook page 123

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INDICATOR LIGHT -
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pushed in (engaged) and' ,(
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Itldlt'atur needle is reversed on
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This light is located within
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v l (; YI{O INDICATOR - Provides heading
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I'pl and hold. Heading bug on indicator is wwd III
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JlllnHNATOR - Senses roll and yaw for wings Icvolinu and
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PUSHBUTTON - Aircraft will turn to and hold heading se]ro(',,""
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ou the directional gyro.
II!\V INT PUSHBUTTON - When heading "bug" on DG is set to selected
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to and intercept selected VOR or LOC course.
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TRK PUSHBUTTON - When heading "bug" on DG is set to selected ('",,,',,, "",
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Will I rack selected VOR or LOC course.
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SENS PUSHBUTTON - During NAV INT or NAV TRK operation, this h;,'."
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,c;ldJing increases autopilot response to NAV signal to provide more prcei:w
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during localizer approach, In low-sensitivity position (pushbutton out), J'('::P"""" I"
NAV signal is dampened for smoother tracking of enroute VOR r adials ; il al::o
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out effect of course scalloping during NAV operation.
:). BACK CRS PUSHBUTTON - Used with LOC operation only. With Alp switch
(Wi"
or ON, and when navigation receiver selected by NAV switch is set to a loc al iv.er
frequency, it reverses normallbcalizer needle indication (CDI) and causes
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reversed (BC) light to illum inate. With Alp switch ON, reverses localizer
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autopi lot ,
10. ACTUATOR _ The torque motor in the actuator causes the ailerons to move in tl1I' (''''''
manded 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 will:'.'
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when turned to the right (R), the airplane will execute a r ight , standard rate turn;
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turned to the left (L), the airplane will execute a Ieit, standard rate turn. When ,.,,,,, ,
in detent and pushed in, the operating mode selected by a pushbutton is engaged,
13. TRIM _ Used to tr im autopilot to compensate for m ino r variations in aircraft l.rim
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lateral weight distribution. (For proper operation, the atr cr aftts rudder trim (if
equipped) must be manually trimmed before the autopilot is engaged. )
14. AlP SWITCH- Turns autopilot ON or OFF.
Figure L Cessna. 300A
Controls and Indi c:. I(
COMPUTER
AMPLIFIER
(Sheet 2 of 2)
TURN COORDINATOR
"i'igure
1.
Cessna 300A Autopilot, Operating Controls and Indicators
(Sheet 1 of 2)
6