T-45A UJPT, E2-C2, ADV, & IUT Eng-15
Egress System
deployment, man/seat separation,
main chute deployment)
NOTE: A barostatic release
mechanism is used as a backup in the
event of an electronic sequencer failure
at 18,000 ft. Activates when between
14,000 and 16,000 ft.
g.
Parachute deployment totally
dependent upon ejection seat initiation.
If seat fails to fire, manual bailout is
impossible
WARNING: Ejection with canopy in
any position other than fully closed
and locked is not recommended.
Serious bodily injury and seat
malfunction may occur.
NOTE: Airspeed for minimum
parachute opening shock is 200 kts or
less. Due to the unique features of
NACES, peak parachute opening
shock load occurs around 280 kts.
Parachute ejection above 200 kts
would receive the least opening shock
in the 320-350 kts range due to the
benefits of the drogue phase to
stabilize and decelerate the seat.
Above 600 kts, ejection becomes
extremely hazardous. As in all tactical
jets, given a choice, slow your aircraft
as slow as practical in straight and
level flight, trimmed, before ejecting.
h.
Ejection event sequence from initiation
Sg 3, fr 27
through end of catapult stroke
(4 overlays)
Ejection Initiation
Event Sequence
(1) In cockpit: pull ejection handle
(2) Gas travels from right seat firing
Overlay 1
cartridge to lower quick-disconnect
Gas-to-SMDC Initiator
and to gas-to-SMDC initiator
Page 15-26
(8-03) Original
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