Egress System
T-45C TS, ADV & IUT ENG-15
ii)
Parachute deployment rocket fires
to deploy parachute
a) Rocket falls free of parachute
when expended - all modes
iii)
Harness release system operates
iv)
Pilot released from seat
D.
Summary: the NACES ejection seat consists of a cata-
pult assembly, main beams, a parachute assembly, and
seat bucket assembly. Attached to the seat bucket are
the seat height adjustment switch, shoulder harness
control lever, ejection handle, SAFE/ARMED handle,
emergency restraint release handle, leg restraint system,
and rocket motor. The survival kit contains the
emergency oxygen supply, life raft, survival aids, and
emergency locator beacon and is stored in the seat
bucket. The ejection sequence selector panel has a
SEAT LIGHT switch spring loaded to NORMAL and must
be safety pinned to the SOLO position. The command
ejection selector handle has three positions, FWD-
BOTH/AFT-SELF, BOTH, and SOLO. There are five
ejection modes automatically selected by the seat based
on altitude and airspeed at the time of ejection.
PROGRESS CHECK
Question 2 — 1.3.5.1.3
Which positions must the canopy be in to initiate a safe
ejection?
ANSWER: Closed and locked
Question 3 — 1.3.5.1.4.2
What is the purpose of the shoulder harness control lever?
ANSWER: It allows locking or unlocking of the shoulder
harness reels, allowing or inhibiting forward movement by the
pilot
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