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can also be evaluated on the MFD OWN AK
format. An INS ALIGN COMPLETE message
will normally occur in 7 minutes. At this time the
align quality should be below 1 nm per hour.
Note
Do not select SAHR during CV ALIGN to
check alignment progress. Wait until INS
alignment is complete and INS has been selected
on the NAV MODE switch before selecting
SAHR.
10. SAHRS alignment progress may be monitored at
this time by selecting the NAV page.
Note
The SAHRS alignment process will initiate
after the INS determines a valid true
heading (approximately at INS quality
value of 5). SAHRS quality value should
reinitiate to approximately 31.2 at that
time.
If power has been applied to the aircraft
for ane xtendedp eriod oftimeprior to INS
CV align being initiated, the SAHRS may
complete a ground align (NORM) and a
SAHRS completem essagea ppearso n the
MFD. After the INS CV align is initiated,
the SAHRS will initiate a concurrent CV
align normally, but another SAHRS align
complete message may not appear.
11. It is advisable to continue alignment after appearanceo
f the INS ALIGN COMPLETE messageif
time permits. When ready to take the alignment,
the inertial navigation mode may be selected by
setting the NAV MODE switch to MS.
20.25 ORIGINAL
NAVAIR 01.Fl4AAD-1
CV SINS DATA
N 37’16.15
w134--34.31
MV-T 5.3E
STORED HEADING CV ALIGNMENT
CV SINS DATA
N 37-15.15
w134*34.31
MY-T 5.3E
C” SPD 017
Figure 20-15. CV Alignment Formats - SINS
CV ALIGNMENT
ORIGINAL 20-26
NAVAIR Ol-Fl4AAD-1
Note
Although SINS carrier alignment normally
requires no entry ofdata, ifa SINS alignment
takes place at any carrier location other than
the flight deck, then it is advisable to enter
the correct vertical lever arm via the DEU.
This is the height in feet of the aircraft INS
above the carrier’s SINS location, This entry
can be made only via the DEU by calling up
the DEU CV ALIGN page and depressing
the VLA pushtile shown in Figure 20-16.
20.3.2.2 Concurrent SINS Stored Heading
Carrier Alignment. Carrier alignment time can be
reduced by 1 minute by performing a stored heading
carrier alignment. This procedure requires that a reference
alignment be performed using SINS data and that
the aircraft’s position on the carrier remain stationary
until the completion ofthe subsequenst toreda lignment.
Perform a referencea lignment by following the SINS
carrier align procedure in paragraph 20.3.4.2.1. When
the INS ALIGN COMPLETE message appears on the
HUD/VDI formats, return the NAV MODE switch to
OFF.
Note
Do not box SAHR on the DATA or NAV
formats during the reference alignment.
This will prevent the referencea lignment
and SHDG will not be boxed when alignment
is initiated.
Do not cycle the parking brake during the
reference alignment. This will prevent
the reference alignment and SHDG will
not be boxed when alignment is initiated.
1. Repeat steps 1 through 7 of concurrent SINS carrier
align.
2. Verify that SHDG is boxed on CV SINS DATA
MFD format (Figure 20-15).
3. Repeat steps 9 and 10 of concurrent SINS carrier
align.
20.3.2.3 Concurrent Manual Carrier Alignment.
The INS and SAHRS will initiate ground alignments if
there is no SINS data. The CV MANUAL format will
be displayed after the ship’s data is entered.
1. Repeat steps 1 through 8 of concurrent SINS carrier
align.
Note
If the SINS or data link is not operating or if
a manual carrier alignment is desired, skip
steps 2 and 3.
2. Enter best knowledge of ship’s latitude, longitude,
speed, and heading via the DEU or DD. When the
DATA pushbuttono n the MFD is depressedt,h e
CV MANUAL DATA format, shown on Figure
20-16 appears.
Note
l If SINS is restored, MAN must be unboxed
on the CV DATA format in order
to return to a CV RF alignment.
l Entry ofVLA is neverrequired for manual
carrier alignment.
l When using the DEU, data entry is made
via the DEU CV ALIGN format, using the
LAT, LONG, CSPD and CHDG pushtiles,
and the appropriate quadrant and numerals
shown in Figure 20-16.
l Data entry using the DD requires selection
of the NAV category from the MFK
pushtile and the boxing of the OWN A/C
acronym prior to entering the carrier latitude
and longitude via the DD LAT,
LONG, quadrant and numeral pushtiles,
as shown in Figure 20-17. This is done in
a similar manner as described in paragraph
　
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