Piper Turbo Saratoga PA-32-301T Pilot's Manual page 323

PIPER
AIRCRAFT CORPORATION SECTION 9
PA-32-301T,
TURBO SARATOGA SUPPLEMENTS
Figure 7-3
(cont)
ll. NAVlGATION
(NAV) MODE SELECTOR
BUTTON
-
When
pushed,
will select the Navigation mode. The 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. The NAV annunciator
will
flash
until
the automatíc
capture sequence is initiated.
12. HEADING (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.
13. 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.