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parachute and release of the harness locks. Depending
on seat altitude and airspeed, the seat drogue, which is
catapult-deployedt? om a canistero n the back of the seat
and has a three-point attachment bridle, can be used to
stabilixetheseat,s low its descent,o rbejettisonedbefore
the parachute deployment rocket is tit& To ensure
parachuted eployment and man-seats eparation,a bar+
static releaseo peratest o tire the parachuted eployment
rocket and release the hamess locks in the event of
complete or partial sequencer failure. As a further
backup, operating the manual release handle on the seat
bucket will also fire the parachute deployment rocket
and release the harness locks.
2.38.1.1 Seat Firing Handle. Ejection is initiated
by pulling up on the seat firing handle on the tiont of the
seat bucket between the crewmember’s thighs. This action
operates linkage that withdraws the sears t?om the
two seat initiator cartridges, commencing the ejection
sequence.
238.12 SAWARMED Handle. ?be SNARMED
handle on the right side of the seat bucket forward of the
manual override handle is the only control for arming
and saSng the seat. (On the ground, a safety pin is also
installed in the seat ftig handle.) The handle locks in
the selected position. It is operated by releasing a catch
to remove the locking plunger. When the handle is IX+
tated forward (up) to safe the seat, the SAFE legend is
displayed on a white background and a safetyplungeris
inse-ttedin to the firing handle linkage so that the handle
cannot be pulled up, rendering the seat inoperative.
Rotating the handle aft (down) displays the ARMED
2.243 ORIGINAL
NAVAIR 01-Fl4AAD-1
CATAPULT MANIFOLD VALVE
CANOPY PENETRATOR (2) \ -I
SEAWARS (2) \
LH PITOT
(STOWED)
PARACHUTE
STICKER STRAP (2)
MANUAL OVERRIDE
HANDLE \
SAFE/ARM
HANDLE
DEPLOYMENT
LH BALLISTIC
HARNESS
LAP BELT (2)
PERSONNEL SERVICES
DISCONNECT BLOCK
LEG RESTRAINT
HARNESS LOCK
LINE SNUBBER (2)
CONTROL LEVER
EJECTION CONTROL
HANDLE SAFETY PIN
/ “I4 \\ \ LATERAL
’ THRUST MOTOR
(FORWARD SEAT - LH SIDE;
AFT SEAT - RH SIDE)
LEG RESTRAINT LINES
Figure 2-126. Ejection Seat (Shed 1 of 2)
ORIGINAL 2.244
NAVAIR Ql-FUAAD-I
I
Figure 2-126. Ejection Seat (Sheet 2 of 2)
2-245 ORIGINAL
NAVAIR Ql-FlUAD-1
legend on a yellow-black striped background. This pulls
the safety plunger from the tiring handle linkage, being
the handle and allowing the seat to be fmd. With the
canopy closed, the SEAT UNARMED caution light in
the RIO cockpit is illuminated if the SAFE/ARMED
handle on either seat is in the SAFE position.
2.38.1.3 Manual Override Handle. The manual
override handle on the right side of seat bucket behind
the SAFE/ARMED handle is connected by linkage tc
the lower harness lock release mechanism and to an
initiator in the seat bucket. The handle is locked in the
down position by a catch operated by a thumb button at
the forward end of the handle. Depressing the thumb
button allows the handle to be rotated aft. Operating the
handle also rotates the SAFE/ARMED handle to the
SAFE position. A catch in the lower part of the manual
release handle must be reset before the handle can be
returned to the down position. With the seat in the aircraft,
operation of the handle linkage is restricted by the
pin puller and releases only the lower locks, negative-g
strap, and the leg restraint line locks to permit emergency
ground egress with the survival kit attached.
Note
The parachute risers and persoMe services
must be disconnectedm anually.
After ejection, the pin puller disengagesp ermitting
liuther movement of the linkage so that operating the
handle releases the lower harness locks and fires the
manual override initiator that provides gas pressure to
release the upper torso harness lo&s and fue the parachute
deployment rocket in the event of automatic sequencing
failure.
2.38.1.4 Torso Harness. The torso harness is worn
by the crewmember and takes the place of a separate
lapbelt and shoulder harness. The upper torso harness is
connected by release fittings (Koch fittings) to the inertial
reel via straps passed through roller yokes attached
to the parachute risers. The release fittings incorporate
SEWARS to allow automatic release on saltwater entry.
A fitting on the lower part of the torso harness connects
to the negative-g strap, and two buckles connect to the
seat lapbelt fittings. Lapbelt girth can be adjusted to
　
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