Piper Turbo Saratoga PA-32-301T Pilot's Manual page 320

SECTION 9 PIPER
AIRCRAFT CORPORATION
SUPPLEMENTS
PA-32-301T, TURBO SARATOGA
Figure 7-1
(cont)
8. BACK COURSE APPROACH (BC)
MODE SELECTOR
BUTTON
-
When pushed, will
select the Back Course Approach
mode. This mode functions
identically
to the approach
mode except
that response to LOC. signals
is reversed. Glide slope coupling
is
inhibited in the Back Course Approach mode.
9. 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, RNAV or
LOC
signals plus glide slope coupling
in
the case of an ILS. The
tracking gain of the APR mode
is greater than the gain
in the NAV
mode. The APR annunciator
will
flash
until the automatic
capture
sequence
is initiated.
10. NAVlGATION (NAV) 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 NAV annunciator will flash until the automatic
capture
sequence is initiated.
11. HEAD1NG (HDG)
MODE SELECTOR
BUTTON
-
When
pushed,
will select the Heading mode, which commands
the air-
plane to turn to and maintain the heading selected
by the heading
bug on the DG or HSL 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 20°.
Selecting HDG mode will
cancel NAV, APR or BC track modes.
12.
ALTITUDE HOLD (ALT) MODE SELECTOR BUTTON
-
When pushed,
will select the Altitude Hold mode, which
commands
the
airplane to maintain the pressure altitude existing at the
moment
of selection.
Engagement
may be accomplished in climb,
descent,
or level flight. In the APR mode, altitude hold will
auto-
matically disengage when
the glide
slope
is captured.
13. FLIGHT DIRECTOR (FD)
MODE
SELECTOR BUTTON
-
When pushed,
will select the Flight Director
mode
(with KC
292
Autopilot
Computer
only),
bringing the
Command Bar in
view on
the KI 256 and
will
command
wings level and pitch attitude
hold.
The FD mode must be selected prior to Autopilot
engagement.
14. VERTICAL
TRIM CONTROL
-
A spring loaded to center
rocker
switch which will provide
up
or
down
pitch command changes: while
in
ALT will adjust altitude at rate of about
500fpm;
when not in
ALT
will adjust pitch attitude at a
rate
of
.7
deg/
sec.
Will cancel
GS
couple.
The aircraft must pass through
the glide slope again to allow
GS
recouple.
REPORT: VB-1070
ISSUED:
AUGUST
6,
1982
9-96