T-45A UJPT, E2-C2, ADV, & IUT Eng-15
Egress System
(1) Can be used during ground
emergency egress and during
flight in case of smoke in cockpit
and malfunctioning ram air valve
Sg 1, fr 10
(2) Each handle attached to lost
(2 overlays)
motion unit by cable
(a) Operating cable from MDC
handle passes through lost
motion unit
(b) Second cable attached to
lever/pulley and spring
LOST MOTION UNITS
assembly
(c) Third cable to explosive
Overlay 1
Lever/Pulley Assembly
initiator lever which fires
initiators, thus detonating
Overlay 2
MDC and shattering canopy
Explosive Initiator Lever and
Mechanical Initiators
NOTE: This arrangement
allows the pilot's hand to be
withdrawn to a region of
safety (approximately 4
inches). Only the last inch of
pull initiates firing.
D.
Mild detonating cord (MDC) controls/indicators
and operational characteristics 1.3.5.1.4.7
1.
Overhead MDC
Sg 1, fr 11
(3 overlays)
a.
Location: attached to canopy around
centerline
b.
Function: shatters center portion of
canopy during emergency egress
NOTE: Detonation is initiated by the
crew pulling the fwd/aft MDC firing
OVERHEAD MDC
handle or it occurs as the automatic
first step in the ejection sequence.
(8-03) Original
Page 15-7
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