link, the piston being held in the operated position
by residual gas pressure. The operating link is then
disengaged from the lower harness release cross
shaft by the action of a spring-loaded plunger in
the operating link guide bracket mounted on the
seat bucket side.
Seat Survival Kit
The seat survival kit (SKU-7/A) operates
automatically upon seat ejection. Kit components
are maintained by the PR rating. The SKU-7/A
contains new equipment. Specific information on
the new items was not available at the time of
development of this manual.
When the ejection control handle is pulled (fig.
5-34), the sears are withdrawn from the seat
initiator firing mechanisms and the two impulse
cartridges are fired.
Gas from the RH cartridge is piped as follows:
1. To the pin puller, which withdraws a piston
from engagement in the lower operating link of
the emergency restraint release mechanism.
2. To the inboard connector of the command
sequencing quick-disconnect on the RH ballistic
Figure 5-34.-Ejection seat gas flow (block diagram).