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after being routed through the snubber box and both garter rings, is secured to the seat just outboard
of the snubber box by a releaseable pin. During ejection, the slack in each line is taken up and the
tension builds up to finally separate the lines at the tension rings in the leg lines. At man/seat
separation, the pins on the other end of the lines are released by the time release mechanism. The pins
are also released when the manual override handle is pulled. Both the lower garter and thigh garter
contain a quick release buckle which disconnects the ring through which the leg restraint line runs,
permitting the pilot to egress from the aircraft wearing both upper and lower garters. In addition, toe
clips are installed on the tops of the rudder pedals to prevent contact between the toes and the
instrument panel during ejection.
2.15.3.7.1 Leg Restraint Snubber Release Tabs. The leg restraint lines are adjusted to give the pilot
more leg movement by pulling inboard the leg restraint snubber release tabs (figure 2-35) and
simultaneously pulling the leg restraint lines forward through the snubber box.
Figure 2-35. Leg Restraint System
A1-F18EA-NFM-000
I-2-113 ORIGINAL
2.15.3.8 Seat Survival Kit (SKU-10/A). The SKU-10/A survival kit is used with the SJU-17 ejection
seats. This survival kit, which fits into the seat bucket, is a contoured rigid platform which contains an
emergency oxygen system and a fabric survival rucksack (figure 2-36). A cushion on top of the platform
provides a seat for the aircrew.
The rigid platform forms a hard protective cover to the survival package and oxygen system and is
retained in position in the seat bucket by brackets at the front and lugs secured in the lower harness
locks at the rear. Attached to the lugs are two adjustable lap belts with integral quick release fittings.
A flexible oxygen and communication hose is installed in the left aft side of the upper kit to provide
a connection to the aircrew for aircraft oxygen and communication. An emergency oxygen cylinder,
pressure reducer, and associated pipe work are mounted on the underside of the platform. A green
manual emergency oxygen operating handle is mounted on the left side of the platform and a pressure
gage is on the inside face of the left leg support. The emergency oxygen can be activated manually by
pulling the green emergency oxygen handle upwards. The green emergency oxygen handle can be reset,
shutting off the flow of emergency oxygen, by pushing downward on the button on the front end of the
emergency oxygen handle assembly. The emergency oxygen is automatically activated during ejection
by a lanyard connected between the floor and the survival kit. An AN/URT-33A locator beacon is
located in a cutout in the left leg support. The beacon is actuated during ejection by a lanyard
connected to the emergency oxygen lanyard.
The survival rucksack is retained to the underside of the rigid platform by five fabric straps and a
double cone and pin release system. The package accommodates a life raft and survival aids. Two
yellow manual deployment handles are mounted on the aft surface of the kit. Pulling either handle
enables the aircrew to deploy the raft and survival package after man/seat separation. The life raft
inflates automatically on survival package deployment and is attached to the survival package with a
line. If the survival kit must be deployed after water entry, a snatch pull on the red manual activation
handle near the CO2 bottle is required to inflate the life raft.
A1-F18EA-NFM-000
I-2-114 ORIGINAL
Figure 2-36. Survival Kit
A1-F18EA-NFM-000
I-2-115 ORIGINAL
2.15.3.9 Manual Override Handle. A manual override handle permits releasing the pilot's lower
harness restraints and the leg restraint lines for emergency egress and permits resuming part of the
ejection sequence (man/seat separation and main parachute deployment) in the event of sequencing
failure during ejection. The manual override handle, on the right side of seat bucket and just aft of the
ejection seat safe/arm handle, is actuated by pressing a thumb button on the forward part of the handle
and rotating the handle up and aft. If the handle is actuated on the ground or in the air before ejection,
survival kit attachment lugs and leg restraint lines are released, the inertia reel is unlocked, and the
ejection seat safe/armed handle automatically rotates to the SAFE position. During ground emergency
egress, after the manual override handle is pulled and the parachute riser fittings are released, the pilot
is free to evacuate the aircraft with the survival kit still attached. If the manual override handle is
actuated after ejection but before man/seat separation occurs, the following events take place: release
　
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