Egress System
T-45C TS, ADV & IUT ENG-15
(2) Each handle attached to lost-motion unit by
cable
(a) Operating cable from MDC handle
passes through lost motion unit
Sg 1, fr 18, ovl 1
Lever/Pulley Assembly
(b) Second cable attached to lever/pulley
Fig 3: Lost Motion
assembly
Units
(c) Third cable to explosive initiator lever
Sg 1, fr 19, ovl 2
which fires initiators, thus shattering
Explosive Initiator
Lever
canopy
Fig 3: Lost Motion
Units
NOTE: This arrangement allows the
pilot’s hand to be withdrawn to a region
of safety (approximately 4 inches).
Only the last inch initiates firing.
D.
Mild detonating cord (MDC) controls/indicators and
operational characteristics 1.3.5.1.4.7
Sg 1, fr 20
1.
Overhead MDC
(3 overlays)
Overhead Mild
a.
Location: attached to canopy around centerline
Detonating Cord
b.
Function: shatters center portion of canopy
during emergency egress
NOTE: Detonation is initiated by the crew
pulling the fwd/aft MDC firing handle or it occurs
as the automatic first step in the
Sg 1, fr 21
2.
Peripheral MDC
Peripheral Mild
Detonating Cord
a.
Location: attached to canopy around edge of
canopy shell
b.
Function: shatters canopy at edge of shell
NOTE: The peripheral MDC is partially covered
by deflector plates to protect the aircrew from
the blast resulting from MDC detonation.
Page 15-8
(9-98) Original
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