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the aircraft replaces the AN/ARN-1 18 with the JTIDS
receiver/transmitter. Refer to 20.1.9 for JTIDS tacan
operation.
20.2 NAVIGATION SYSTEM DATA
DISTRIBUTION
The navigation system provides data to other systems
and functions as well as for display to the crew. In
general, this is similar to displayed data, but such parameters
as aircraft angular rates, accelerations, and
time tag data are also included. Figure 20-S summarizes
navigation system outputs.
20.2.1. Navigation Data Display. Navigationinformation
is displayed to the aircrew in graphic form on
the HUD and MFD and in tabular form on the MFD.
With the DISPLAYS panel TLN (takeoff, landing,
navigation) MODE button is selected, both the HUD
and the MFD VDl format show navigation information
graphically in the vertical plane. The MFD can also
show a HSD format that provides graphic navigation
information in the horizontal plane.
Tabular information relating to alignment, waypoints,
and own aircraft can be displayed on the MFDs.
The navigation information provided by the various
display selections is described in the paragraphs that
follow.
20.2.1.1 HUD TLN Basic. The HUD provides ptimary
flight and navigation information in graphic and
numeric form in a portion of the pilot’s field of view
throught he windscreene ncompassingl lo0 in azimuth
and elevation (Figure 20-6). A repeat ofthis information
can be displayed on the MFD by selecting the HUD
pushbutton on the MENU1 format.
In addition to the information in Figure 20-6, other
HUD formats provide indications ofglideslope and centerline
errors for ACL and ILS steering modes as well
as flight director steering information and commanded
heading.
20-l 1 ORIGINAL
NAVAIR 01.F14AAD-1
NAV OUTPUTS TO DISPLAYS
OTHER MC5 FUNCTIONS
LAT. LONO. ALTITUDE
TRUE “EAOINO
TRUE AIR SPEED I
I ....--.- .--.
ANOLE OF ATTACK
FITCH BODY RATE I
MFD
SYSTEMlRIOAR ALTITUDE
VERTICAL VELOCITY
VDI FORMATS CAUBRATEO AIRSPEED
- MACH NO., am0 PRESSURE
ORAPHlCS a Aa. LAT a “WIT ERROR
ALPHANVMERCS ILS A2 (L EL DEVIATION
TCN,OESTlNATlON RANOE
OIL CM0 ALTlMACH NO.
OIL CM0 HEAOINO
COYHAND HEADlNO
- NAVIGATION
SYSTEM
HSD FORMATS
ORAPHICS a
ALPHAN”MERlCS
Figure 20-5. Navigation System Data Distribution
ORIGINAL 20.12
NAVAIR Ol-Fl4AAD-1
TLN GEAR UP, FORMAT SWITCH-ANALOG
LEGEND
HEADING SCALE
WATER LINE
PITCH LADDER
POTENTIAL FLIGHT PATH MARKER
GHOST FLIGHT PATH MARKER
RADAR ALTITUDE READOUT
ALTITUDE ANALOG DIAL
VERTICAL VELOCITY
*DISPLAYED AS REQUIRED
FLIGHT PATH MARKER
NAV RANGE
ANGLE-OF-BANK SCALE
PEAK G
AIRCRAFT G
MACHNUMBER
ANGLE-OF-AlTACK READOUT
AIRSPEED ANALOG DIAL
(WI-F50D-411-0
Figure 20-6. HUD Navigation Outputs (TLN Basic)
20-13 ORIGINAL
NAVAIR Ol-Fl4AAD-1
20.2.1.2 MF D VDI (Basic) Format, TLN Mode.
The h@Ds provide a VDI format that is a representation
in the.v ertical plane of a field of view of *4Y in azimuth
and elevation. In the TLN basic mode (Figure 20-7), the
VDI format displays the same information as the HUD
except for the airspeed and altitude dials, angle ofattack,
and g readouts.
This format also provides readouts of the course and
heading selected using the CRS and HDG knobs on the
pilot center instrument panel (FO-3). Pushbutton legends
permit selection of destination @EST), data lii
(D/L), tacan (TCN), manual (MAN), or all-weather
landing (AWL) steering.
In addition to the information in Figure 20-7, other
MFD formats provide indications’of ACL glideslope
and centerline errors, glideslope and centerline errors
from ILS, flight director glideslope and centerline steering
information, commanded heading, commanded
speed and altitude information, and HUD flight director
declutter.
20.2.1.3 MFD Own-Aircraft (Basic) Data Format.
The MFD own-aircrafi (basic) data format (Figure
20-8) tinnishes navigational data in tabular form.
This format can be called up from several of the MFD
formats by selecting the DATA pushbutton legend.
In addition to the parameters shown in Figure 20-8,
other own-aircraft MFD formats are available. During
alignment, these provide indications of alignment progress
in both numeric and graphic form and INS north
and east velocities.
20.2.1.4 MFD HSD (Basic) Format, TLN Mode.
The MFDs provide a HSD format (Figure 20-9) showing
ana ircral?c enteredr epresentationo f the situation in the
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F-14D 飞行手册 Flight Manual 3(18)
