Glideslope Coupling - Cessna 172R Operating Handbook

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a) If the D-Bar is

the autopilot will annunciate REVARM; when the

annunciator will go

will be automatically captured and tracked.

b) If the D-Bar is less than 2 to 3

HDG mode will disengage upon selecting REV mode;

capture/track sequence will automatically begin.

autopilot coupled approaches (recommended).

9. GLIDESLOPE COUPLING

Glideslope coupling is inhibited when operating in NAV

or REV modes. With NAV

glideslope armed and coupling occurs automatically in

the APR mode when tracking a localizer.

b. At Glideslope centering

Autopilot can capture glideslope from above or below

autopilot coupled approaches (recommended).

annunciator will illuminate and the

- ENGAGED, Note

MAINTAIN 90 KIAS minimum during

FAA APPROVED

point is reached the ARM

and the selected back course

minimum during

annunciated.

ARM annunciator

from center,