Cessna TURBO CENTURION T210M 1978 Pilot Operating Handbook page 364

CESSNA 400B IFCS
(TYPE IF-550A)
PILOT'S OPERA TING HANDBOOK
SUPPLEMENT
6
15. ALTITUDE HOLD (ALT) MODE SELECTOR SWITCH - Engagement may be
accomplished in climb, descent, or level attitude and commands the airplane to ,,-..._ __
m a intain pressure altitude existing at the moment of selection. Mode can be used
with lateral command modes. In approach mode, altitude hold will automatically
disengage when glide slope is captured. The go-around (GA) switch, when
engaged, will also disengage altitude hold (ALT). ALT annunciator will illumi-
nate green when engaged.
16. NAVIGATION (NAV) MODE SELECTOR SWITCH - Engagement provides for
capture of VOR ( omni) or LOC (localizer) track using NA V 1 or NA V 2 mode as
selected. The TURN knob must be centered. During NAV-LOC operation, the glide /,....._,_•
slope (GS) mode will automatically engage only at beam center and only when the
beam is approached from below.
If
the go-around (GA) switch on the a irplane
control wheel is actuated, the navigation (NA V) mode will automatically be
cancelled and all associated annunciator lights will go out. Depending on the
frequency selected at the time the NAV mode is activated, the VOR/LOC
annunciator will illuminate green to show either VOR or LOC and the NA V mode
annunciator will also illuminate green.
17. HEADING (HDG) MODE SELECTOR SWITCH - Engages the headin g mode,
which commands the airplane to turn to and maintain heading selected on
Horizontal Situation Indicator (HSI). A new heading may be selected at a n y time
and will result in airplane turning to new heading with maximum bank angle of
25°. HDG mode will cancel GA mode and HDG annunciator will illuminate green.
18. FLIGHT DIRECTOR INDICATOR (FDI) - Displays airplane attitude as a con- / - •, _
ventional attitude gyro and displays commands for flight director operation.
19. FDI ROLL ATTITUDE INDEX - Displays airplane roll attitude read against roll
attitude scale.
20. FDI ROLL ATTITUDE SCALE - Movable scale marked at 0, ±10, 20, 30, 60, a nd 90
degrees.
21. FDI PITCH ATTITUDE SCALE - Moves with respect to the symbolic airplane to
present pitch attitude. Scale graduated at 0,
±5,
10, 15, and 20 degrees.
22. FDI COMMAND BARS - Display computed steering commands referenced to dot
on symbolic airplane. Command bars are only visible when FD mode is selected
on the MODE SELECTOR.
23. FDI SYMBOLIC AIRPLANE - Airplane pitch and roll attitude is displayed by
the relationship between the fixed symbolic airplane and the movable back-
ground. During flight director operation, the symbolic airplane is flown to align
its center dot with the command bars to satisfy the flight director commands.
24. FDI SYMBOLIC AIRPLANE ALIGNMENT KNOB - Provides manual position-
ing of the symbolic airplane for pitch attitude alignment.
25. HORIZONTAL SITUATION INDICATOR (HSI) - Provides a pictorial presenta-
tion of aircraft deviation relative to VOR radials or localizer bea ms. It also
displays glide s
1
.ope deviations and gives heading reference with respect to
magnetic north.
Figure
1.
Cessna 400B IFCS (Type IF-550A) (Sheet 4 of 6)