Piper Turbo Saratoga PA-32-301T Pilot's Manual page 328

SECTION
9 PIPER
AIRCRAFT CORPORATION
SUPPLEMENTS PA-32-301T, TURBO SARATOGA
1
2 3
KG 107 NON-SLAVED DIRECTIONAL GYRO
Figure 7-1l
f.
KG
107 NON-SLAVED DIRECTIONAL GYRO
(DG)
-
Provides
a stable visual indication of aircraft heading to the pilot. The gyro is
air driven.
2.
LUBBER
LINE
-
Indicates aircraft magnetic heading on compass
card
(4).
3. HEADING BUG
-
Moved by
(
E¯Ì
)
knob
(5)
to select
desired
heading.
4.
COMPASS CARD
-
Rotates to display heading of airplane with
reference
to
lubber line
(2)
on
DG.
5.
HEADING SELECTOR
KNOB
( )
-
Positions
heading
bug
(3)
on compass card
(4)
by
rotating
the
heading selector knob. The
Bug
rotates
with
the
compass
card.
6.
GYRO ADJUSTMENT
KNOB (PUSH)
-
When pushed in,allows
the pilot to manually rotate
the gyro
compass card
(4)
to correspond
with
the
magnetic
heading indicated by
the magnetic compass.
The
unslaved
compass
card must
be
manually reset periodically
to
compensate
for
precessional
errors
in the
gyro.
REPORT:
VB-1070 ISSUED: AUGUST 6, 1982
9-104