Arrow PA-28R-201 Pilot's Operating Handbook And Faa Approved Airplane Flight Manual page 253

PIPER AIRCRAFT CORPORATION
PA-28R-201, ARROW
Figure 7-\ (cont)
SECTION 9
SUPPLEMENT
6
6.
PREFLIGHT TEST (TEST) BUTTON - When momentarily
pushed, initiates preflight test sequence which automatically turns
on all annunciator lights, tests the roll rate monitor, checKs the
manual trim drive voltage, checks the manual electric trim monitor
and tests all autopilot valid and dump logic. If the preflight is
successfully passed, the AP annunciator light will flash for approx-
imately 6 seconds (an aural tone will also sound simultaneously
with the annunciator flashes). The autopilot cannot be engaged
until the autopilot preflight tests are successfully passed.
7.
BACK COURSE APPROACH (BC) MODE SELECTOR
BUTTON - When pushed, will select the Back Course Approach
mode. Th is mode functions identically to the approach mode except
that response to LOC signals is reversed.
8.
APPROACH (APR) MODE SELECTOR BUTTON - When
pushed, will select the Approach mode. This mode provides all
angle intercept (with HSl) or a fixed angle intercept of
45°
(with
DG), automatic beam capture and tracking of VOR, RNA V or
LOC signals. The tracking gain of the APR mode is greater than
the gain in the NA V mode. The APR annunciator will flash until
the automatic capture sequence is initiated.
9. NAVIGATION (NA V) MODE SELECTOR BUTTON - When
pushed, will select the Navigation mode. The mode provides all
angle intercept (with HSI) or a fixed angle intercept of
45°
(with
DG), automatic beam capture and tracking of VOR, RNAV or
LOC signals. The NA V annunciator will flash until the automatic
capture sequence is initiated.
10.
HEADING (HOG) MODE SELECTOR BUTTON - When
pushed, will select the Heading mode, which commands the
airplane to turn to and maintain the heading selected by the heading
bug on the DG or HSI. A new heading may be selected at any time
and will result in the airplane turning to the new heading with a
maximum bank angle of about 22°. Selecting HOG mode wiIl
cancel NAV, APR or BC trac'k modes.
ISSUED: SEPTEMBER 15,1988
REPORT: VB-t365
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