Cessna TURBO CENTURION T210M 1978 Pilot Operating Handbook page 313

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PILOT'S OPERATING HANDBOOK
SUPPLEMENT
HSI
(TYPE IG-832A)
4. HEADING REFERENCE (LUBBER LINE) - Indicates aircraft magnetic heading
on compass card (16).
5. HEADING WARNING FLAG (HDG) - When flag is in view, heading display is
invalid due to the heading system power being interrupted or the HSI vacuum
powered gyro speed being low.
6. GYRO SLAVING INDICATOR - Displays visual indication of heading indicator
and flux detector synchronization. When slaving needle is aligned with the HSI
45° right index, it shows that the heading indicator agrees with the aircraft
magnetic heading. Off-center pointer deflections show the direction of heading
indicator error relative to aircraft magnetic heading. The compass CARD SET
knob (9) may be used at any time to more rapidly accomplish synchronization of
the heading indicator reading with magnetic heading as indicated by the slaving
indicator.
7. HEADING BUG - Indicates selected reference heading relative to the compass
card (16).
8. TO/FROM INDICATOR FLAG -- Indicates direction of VOR station relative to
selected course.
9. HEADING SELECTOR AND CARD SET KNOB (PUSH
.A
CARD SET) -
Positions heading "bug" on compass card (16) by rotating the PUSH
.A
CARD
SET knob. Pushing in and rotating the PUSH
.A
CARD SET knob, sets the compass
card. The "bug" (7) rotates with the compass card.
10.
11.
12.
13.
14.
COURSE (OMNI) DEVIATION BAR - Bar is center portion of omni bearing
pointer and moves laterally to pictorially indicate relationship of aircraft to
selected course. It relates in degrees of angular displacement from VOR radials or
localizer beam center.
COURSE DEVIATION DOTS - A course deviation bar displacement of 2 dots
represents full scale (VOR
=
±10° or LOC
=
±2½ 0
)
deviation from beam centerline.
COURSE SELECTOR (
t)
KNOB - When rotated, positions omni bearing selector
(2) on the compass card (16) to select desired VOR radial or localizer course.
GLIDE SLOPE SCALE - Indicates displacement from glide slope beam center. A
giide slope deviation bar displacement of 2 dots, represents full scale (0.7°)
deviation above or below glide slope beam centerline.
GLIDE SLOPE POINTER - Indicates on glide slope scale (13) aircraft displace-
ment from glide slope beam center.
15. GLIDE SLOPE FLAG - When in view, indicates glide slope receiver signal is not
reliable.
16. COMPASS CARD - Rotates to display heading of airplane with reference to
lubber line (4).
Figure
1.
Horizontal Situation Indicator (HSI) (Type IG-832A)
(Sheet 2 of 3)
3