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|  MIL-S-18471G(AS)
it shall be capable of being recycled (by the sequential application of two
motions) so that the restraint system can be reset readily by maintenance
personnel. On an ejected seat, the manual release handle shall function to
enable manual override actuation of the recovery subsystem in accordance
with 3.2.2.6. The manual release handle shall:
Be capable of being reached and actuated by an aircrewmember
a.
in the fully retracted position and in any position of
ejection seat adjustment
b. Be capable of releasing the aircrewmember (wearing a full
complement of flight and survival equipment) and the
survival kit from the ejection seat when the aircraft is
in a crash or static emergency condition requiring emergency
manual egress.
c. Require the sequential application of two motions: a lock
or unlock motion requiring the application of 10 5 pounds
and an actuation motion requiring the application of 40
pounds maxixmum.
d. Lock when actuated in the personnel restraint release
position at the same point that harness release occurs,
unless the handle pulls free of the ejection seat or is
attached by a flexible cable. The manual release handle
may continue to travel past the lock point in the direction
of actuation, but shall not return through the lock point.
e. Be capable of locking and then supporting a maximum specified
population, fully-equipped aircrewmember using the manual
release as a handhold or support in manually egressing from
the cockpit, unless the handle pulls free of the ejection
seat when actuated or is attached to the seat only by a
flexible cable.
f. Have a cycle service life of at least 5,000-cycles as a
complete subsystem. A cycle shall consist of the movement
of the control from one position to the other and back
to its initial position and shall be calculated in accordance
with 3.4.2.1.
g. Be capable of beinq stepped upon by a fully-equipped,
maximum specified population aircrewmember without sustaining
damaqe that would degrade its subsequent operation or cause
the subsequent injury of an ejection seat occupant or damage
to personal protective garments or survival equipment.
The restraint harness manual release handle shall be of such size that a
gloved hand of a maximum specified population aircrewmember (pressurized
pressure suit glove, if applicable) may be readily inserted. Two-motion,
squeeze-and-pull type, handles shall have a cross section sufficiently large
to reduce interference with the squeezing action caused by contact between the
fingers and the paint or heel of the hand. Push-pull controls shall be in
accordance with MIL-C-7958.
3.2.2.4 Propulsion subsystem. A propulsion subsystem shall be used to
eject the ejection seat assembly and occupant from the aircraft. Rocket motors
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