Cessna 182S Pilot Operating Handbook page 417

CESSNA
MODEL 182S
SECTION 9 - SUPPLEMENTS
SUPPLEMENT 11 - FAA APPROVED
7. APPROACH (APR) COUPLING: (To enable glideslope
coupling on an ILS and more precise tracking on instrument
approaches).
a.
OBS
Knob --
SELECT
desired approach course. (For a
localizer, set it to serve as a memory aid.)
b.
APR
Mode Selector Button --
PRESS.
Note APR ARM
annunciated.
c. Heading Selector Knob --
ROTATE BUG
to agree with
desired approach .
NOTE
When APR is selected, the autopilot will flash HDG for 5
seconds to remind the pilot to reset the HDG bug to the
approach course. If HDG mode was in use at the time of
APR button selection, a 45 · intercept angle will then be
automatically established based on the pOSition of the bug.
NOTE
All ang le intercepts compatible with radar vectors may be
accomplished by selecting ROL mode PRIOR to pressing
the APR button. The HDG bug must still be positioned to
agree with the desired approach course to provide course
datum to the autopilot when using a DG.
1) If the D-Bar is greater than 2 to 3 dots: the autopilot will
annunciate
APRARM;
when the computed capture point
is reached the
ARM
annunciator will go out and the
selected course will be automatically captured and
tracked.
2) If the D-Bar is less than 2 to 3 dots: the HDG mode will
disengage upon selecting APR mode; the
APR
annunciator will illuminate and the capture/track
sequence will automatically begin.