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the a&at? symbol but instead of the deviation indication,
the command course pointer is shown passing
through the station symbol.
The tacan ID, command course, tacan range, &an
bearing, time to go to the tacan station, and tacan deviation
are all shown on the MFD HSD tacan display format.
The tacan range and tacan deviation are shown on
the HUD and MFD VDI tacan display format. Figure
2040 shows the display formats used for tacan display
steering.
The tacan steering mode is performed as follows:
1. Select the desired tacan channel.
2. Call the VDI or HSD formats on any MFD.
3. Depress TCN pushbutton on VDI format or box
tacan information on HSD format to enable tacan
steering.
4. Depress CD1 pushbutton on HSD format to bring
up course deviation indication format.
ORIGINAL 20-62
NAVAIR 01.F14AAD-1
. .--
% 12OOR
:+: 5L__
.
x
---J5 :I+:
-500
a 13.5
M 0.52
G 1.2
/ 4.5 lOL- -- ---,10
/ y \ \ T’2’5\DATALlNK
I
SELECTED
VDI
COMMAND OMMAND HEADING
MACH NO.
HI Ill
fAT)2-F50D-446-1
Figure 20-38. Data-Link Steering Mode Formats (Sheet 1 of 2)
20-63 ORIGINAL
NAVAIR 0%FUAAD-1
HSD
--‘1MAND
,,lJRSE
Figure 20-38. Data-Link Steering Mode Formats (Sheet 2 of 2)
5. On pilot course/heading display control panel,
command course is selected. This is verifiedunder
CSEL on pilot center and right MFD.
6. Pilot steers to move tacan deviation pointer to center
of MFD HSD tacan display format until it becomes
coincident to command course (tacan
course) line.
20.3.6.6 Autopilot Steering. The mission cornputer
provides the AFCS autopilot with a set of steering
validity discretes and a computed steering error for its
engaged steering mode. The available autopilot steering
modes are: heading hold, ground track hold/destination
hold, and data-link vector hold. Refer to Chapter 2 for a
description of these AFCS functions.
Note
The autopilot data-link vector hold steering
mode is not supported using JTIDS vector
steering data.
20.3.6.7 All-Weather Landing. The mission computer
provides the appropriate steering information to
the aircraft displays for a requested AWL mode. This is
derived from data supplied by the ILS and ACLS. AWL
information is available from either the data link
(AN/ASW-27C (ACL)) or the ILS receiver (AN/ARA-
63) or both. The AWL steering modes operate continuously
in the A/C landing phase to monitor and respond
to pilot AWL requests. The pilot steers to glidepath
situation displays (both ACL and ILS) and flight director
displays during the approach and descent phases of
the landing phase. Chapter 2 describes the AFCS ACL
function, and Chapter 17 provides ACLS description
and procedures.
Note
The AWL function is not supported by the
JTIDS.
ORIGINAL 20-64
NAVAIR 01-F14AAD.I
*-. &
: 250 :
<
. * .
7
5L--- l 2205 :
---,5 ’ til WAYPOINT
ELECTED FOR
- . * - . * DESTINATION
-500 a 13.5 M 0.52
G 1.2 /
/
4.5 lOI.--- -- -JlO WPT1225.4
4
IV\’ ’ \ RANGETO
DESTINATION
I
VDI
MAND HEADING
MARKER
’ I ’ I ’
35 36
-3 __ RANGE
TO
__ __ DESTINATION
__ __
--
N , --- --- \
---q--- DESTINATION
SELECTED
,._.^ _.^_ ._
Figure 20-39. Destination Steering Mode Formats (Sheet 1 of 2)
20-65 ORIGINAL
NAVAIR 01-F14AAD-1
HSD
COMMAND
HEADING \
SEARING
TO
DESTINATION
WAYPOINT
Figure 20-39. Destination Steering Mode Formats (Sheet 2 of 2)
ORIGINAL 20-66
NAVAIR Of-Fl4AAD-1
HUD
TACAN COURSE
TACAN SELECTED
-500
u 13.5
M 0.52 TACAN
G 1.2
/
4.5 IOL- -- ---,I0 TCN 12.5’ RANGE
‘/ / y \ \ ’ \T,~GIN
SELECTED
I
VDI
COMMAND HEADING
TACAN
RANGE
__ +a __
CAN COURSE
DEVIATION
MARKER
TACAN
SELECTED TACAN SELECTED
COURSE POINTER
(AT)%F50D448-1
Figure 20-40. Tacan Steering Mode Formats (Sheet 1 of 2)
20-67 ORIGINAL
NAVAIR 01-F14AAD-1
HSD
CDI SELECTED
DEVIATION ’
MARKER
POINTER
TACAN
HSD
CDI NOT SELECTEI
ADF
/
POINTER
\ SELECTED
HEADING
CDI
-SELECTED
SELECTED
SELECTED
HEADING
Figure 20-40. Tacan Steering Mode Formats (Sheet 2 of 2)
　
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