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of its stroke. The rocket thrust is approximately 4,800
pounds for .25 second and sustains the thrust of the
catapult to carry the seat to a sufficient height for a safe
zero/zero ejection t?om a level attitude. The rocket motor
nozzles are inclined so that the thrust passes close to
the cg of the seat and occupant. The motor also includes
a lateral thrust nozzle that imparts a divergent trajectory
carrying the seat away from the aircraft flightpath.
2.38.2 Command Ejection Lever. A command
ejection lever (Figure 2-128) above the RIO left outboard
console allows the RIO to select either pilot or
RIO control of the command ejection system. Each position
has an internal locking detent. The handle is unlocked
by lifting upward and moved by a forward or aft
motion. If the handle is released before reaching the aft
position, it is spring loaded to return forward. It will
automatically lock in the forward position; however a
downward motion is required to positively lock it into
the aft position. To select MC0 command ejection position,
raise the handle and pull aft. An EJECT CMD
flip-flop-type indicator on the landing gear panel indicates
the command mode selected. The RIO may eject
individually when the command ejection lever is in the
pilot control position. When the command ejection lever
is in the MC0 command position, the RIO can initiate
ejection of both seats. Regardless of the position of the
commandejectionlever, an ejectioninitiatedbythepilot
will always eject both crewmen. Command ejection by
either crewmember will eject the RIO fust and the pilot
0.4 second later. Depending on aircraft dynamics, the
total time for command ejection.of both seats in the
normal (safe and arm device) mode is from 0.4 to 0.9
second; in the backup initiator mode, the total time is 1.5
second.
2.38.3 Ejection Initiation. With the SAFWARMED
handle in the ARMED (down) position, pulling the seat
ftig handle upward to the extent of its travel begins the
ejection by pulling the sears on the seat initiators. The
following events occur:
1. Canopy jettison is initiated.
2. The powered inertia reel retracts, pulling the crewmember
back in the seat.
3. The delay initiators are activated. These initiators
have built-in delays of 1 .O second for the RIO seat
and 1.5 seconds for the pilot seat.
4. The restriction is removed from the manual override
mechanism.
5. The 4.0~secondd elay cartridge for the barostatic
release is initiated.
6. The safe and armed device is armed.
ORIGINAL 2-248
NAVAIR Of-F14AAD-1
NOMENCLATURE FUNCTION
a
EJECT CMD lever PILOT -
(RIO cockpit)
Ejection initiated by the pilot will eject himself and RIO (RIO
first). Ejection initiated by the RIO will eject only the RIO. Pilot
eject command indicator -PILOT.
@ pEJ:MD W-flop)
MC0 - Ejection initiated by the pilot will eject himself and RIO (RIO
first). Ejection initiated by the RIO will eject himself and pilot
(RIO first). Pilot eject command indicator -MCO.
PILOT - Indicates command ejection lever is in PILOT. Only the pilot can
eject himself and RIO -RIO-initiated ejection will eject only
himself.
MC0 - Indicates command ejection lever is in MCO. Both pilot and RIO
can eject both flightcrew members -RIO will eject first.
Figure 2-128. Command Ejection Lever
2-249 ORIGINAL
NAVAIR 0%FlUAD1
when canopjye ttisoni s completea, lanyarda ttached
to thec anopyp ullsa sear,f bing thes afea nda rmd evice.
This initiatest he thermalb attoriesth at power the seat
electronics equencearn d fires the two-stagec atapult,
ejectingth e seat.T heR IO seati s fired immediateloy n
tiring ofthe safea nda rmd evicew, hilet he pilots eati s
delayed0 .4s econdT, heI FJrs witchi s actuatewd hent he
pilot seatis fired.
If the canopyf ails to se~mratoer the safea nd arm
deviced oesn ot tire, the backupin itiatorso peratea t the
expirationo f their&lays,f iring the RIO seat1 .0s econd
afterf bingh andlea ctuationa ndt hep ilots ea0t .5s econd
later, through the canopy.
As the seata scendsth e guider ails, the following
eventso ccur:
1. The multipurpose initiator lanyards begin to
withdraw.
2. Personnesle rvicesb etweens eata nda ircratl are
diSCOMCCtCd.
3. Thee mergencoyx ygens upplyi s initiated.
4. The emergenclyo catorb eaconis activated.
5. Thel egr estrainltm esa m drawn& rought hes nub
hers and restrain the crewmember’s legs to the
f?ontofthesaatbucket.WhenthelegmstraintlJmes
becometa ut,t he breakr ing in eachli ne fails and
the lines are tIeed from the r&craft. The snubbers
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F-14D 飞行手册 Flight Manual 1(179)
