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Shoulder harness control system | Up
Aviation Structural Mechanic E1&C - How airplanes are built and how to maintain them | Next
PARACHUTE DEPLOYMENT ROCKET MOTOR MK 122 MOD 0 |
to the catapult and the handwheel removed, the
latch plunger passes through the top crossbeam
and engages with the barrel latch. The shaped end
of the plunger protrudes still further to engage
the groove of the catapult piston.
SHOULDER HARNESS CONTROL HAN-
DLE.— The shoulder harness control handle (fig.
5-7) is located on the left side of the seat bucket.
The handle is connected to the inertia reel. In the
aft position, the reel is allowed to rotate freely.
When the forward position is selected, straps will
ratchet in, allowing no forward movement.
SHOULDER HARNESS REEL.— The
shoulder harness reel (fig. 5-8, view A) is fitted
horizontally across the front faces of the main
beams and serves as a center crossbeam for the
main beams assembly, as well as a means of
securing the upper harness. It ensures that the
occupant will be brought to, and locked in, the
correct posture for ejection. For normal flight
operations, the shoulder harness is free to extend
and retract as the occupant moves in the ejection
seat. The shoulder harness control lever on the
LH side of the seat bucket can be moved to the
forward (locked) position, which will permit the
Figure 5-8.-View A, shoulder harness reel; view B, shoulder harness reel, sectioned view.
5-9
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