Arrow PA-28R-201 Pilot's Operating Handbook And Faa Approved Airplane Flight Manual page 248

SECTION 9
SUPPLEMENT 6
PIPER AIRCRAFT CORPORATION
PA-28R-20t, ARROW
5. Approach (APR) Coupling
a. When equipped with HSI
(I) COURSE Bearing Pointer - SET to desired course. (
NOTE
When equipped with NA V l/NA V 2 switching
and NAV 2 is selected, set OBS to the desired
course.
(2) HEADING Selector Knob - SET BUG to provide
desired intercept angle.
(3) APR Mode Selector Button - PRESS.
(a) If the Course Deviation Bar is greater than 2 to 3
dots: the aircraft will continue in HDG mode (or
wings level if HDG not selected) with the APR
annunciator flashing; when the computed capture
point is reached the HDG will disengage, the
APR annunciator will illuminate steady and the
selected course will be automatically captured
and tracked.
(b) If the D-Bar is less than 2 to 3 dots: the HDG
mode will disengage upon selecting A PR mode; the
APR annunciator will illuminate steady and the
capture/track sequence will automatically begin.
b. When equipped with DG
I. OBS Knob - SELECT desired approach course.
2. APR Mode Selector Button - PRESS.
3.
Heading Selector Knob - ROTATE BUG to agree
with OBS course.
NOTE
When APR is selected, the lateral operating
mode will change from HDG (if selected) to
wings level for 5 seconds. A 45° intercept angle
will then be automatically established based on
the position of the bug.
REPORT: VB-1365
ISSUED: SEP:fEMBER 15,1988
9-40, 6 of 10
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