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A&r the release sequence is completed, the SMS
updates the stores inventory. Unlike other jettison
modes or launch attempts, a store that is not released is
not declared a HUNG store and is eligible. for ~1 ‘Isequentje
ttison or launch.
l Stores shall be jettisoned above the minimum
fragmentation clearance altitude,
when possible, even though weapon arming
and fuxing is safed/disabledin all jettison
modes.
2.40.3.2 ACM Jettison. ACM jettison provides for
rapid releaseo f any preselectedc ombiition of jettisonable
stores. In additiontoRI selection of those stations
to be separatedt,h e only ACM jettison interlock is the
LDG GEAR handle UP.
l Jettisoning A/G stores during a normal releaset
rain may result in store-to-storec ollision
in near proximity to the aircratt.
l If jettisoned during a takeoff emergency,
external fuel tanks may collide with
the aircraft because of their unstable
characteristics.
a If a jettison or delivery condition existed
such that A/G stores were released from
stations 3 and 6 and not t?om stations 4
and 5, an AFT CG advisory on the MFDs
will not be posted.
2.40.3.1 Emergency Jettison. Emergency jettison
is used to separatea ll jettisonable stores fiorn the
aircrafl as fast as possible. The only interlock require-
1 ment for jettisonable stores is weight off wheels. The
emergency jettison circuit is electrically isolated from
all other release functions ofthe SMF’ and has a separate
electrical path to each jettisonable store station. The
mode is initiated by depressing the EMER STORES
NAVAIR 01.Fl4AAD-1
I
Stations are selected for jettison via the DEU. Figure
2-134 illustrates selection and display of external fuel
tanks for ACM jettison. Only those stations having a
jettisonable store. loaded that have not been de&red
failed are available for ACM jettison selection.
Eachd epressiono f a stationb utton causest hatb utton
display to toggle between JETT and SAFE. The DEU
selections are not forwarded to the SMS until the enter
button is depressed.S electeds tations are indicated on
the MFD SMS format with an inverted “V” above the
stationn umber. The symbol is removed if deselectedb y
the RIO and upon completion of an ACM jettison attempt
or successtitl jettison.
Note
ACM JETT selections are retained in SMP
nonvolatile memory. This allows selections
to be retained and enables ACM JETT without
an operable MCS. However, ACM JETT
designations must be reselected after performing
system reset to restore ACM JETT
symbology on the MFD SMS format.
2-265 ORIGINAL
NAVAIR 0%F14AAD-1
DISPLAY INDICATION
ACM JETT pushbutton
32 ACK light
33 EMER STORES JET-f
pushbutton/light
34 SEL JETT switch
JETTISON STA SEL
switch
FUNCTION
Enables ACM jettison. Pushbutton is under ACM switch cover. When
pressed, onl those stores selected via the DEU are jettisoned. To ensure
release of al Y selected stores, the ACM JETT pushbutton must be
depressed and held for at least 2 seconds.
Redundant indicator for emergency jettison activation. Illuminates for 5
seconds, indicating the SMP has acknowledged the emergency stores
jettison command.
Enables emergency jettison. When depressed with weight off wheels,
activates emergency stores jettison signal to the SMS and illuminates light
for 5 seconds, indicating the SMP has acknowledged the emergency stores
jettison command. Jettison function is disabled with weight on wheels.
Allows RIO to jettison from selected station(s). It is a three-position, leverlocked
switch with guarded positions.
JETT - Actuates normal selective ‘ettison of the store(s) located at the
station(s) designated by the JETTIS b N STA SEL switch.
SAFE - Normal operating position. Inhibits jettison in selective mode.
AUX - Releases all AIG stores loaded on BRU-32s from the station
selected on the JETTISON STA SEL switch with a single switch movement.
Allows selective jettison of Phoenix or Sparrow missiles and auxiliary tanks.
Allows selective or auxiliary jettison of air-to-ground stores.
OFF - Inhibits selective and auxiliary jettison.
Station - Selects store(s) for jettison.
Figure 2-133. Jettison Controls
2-266
NAVAIR Ol-Fl4AAD-1
SMS OPTION SELECTED
ACM JEl-nSON SELECT
SYMBOLS
PRES?.lNO DESIRED STAT,ON OPTlON
TOOGLEa sETwEaN SAFE *ND JETT OPTlOrd
Figure 2-134. ACM Jettison Selection and Display
2-267 ORIGINAL
NAVAIR Ol-l=‘l4AAD-1
ACM jettison is initiated by the pilot raising the
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F-14D 飞行手册 Flight Manual 1(187)
