crewmembers after ditching or after a wheels-up
Q3-21.
What provides high-pressure gas to the
landing by initiation of explosive charges to blow out
canopy actuator to jettison the canopy?
windows and hatches. The emergency egress system
Q3-22.
What component provides interconnection of
uses SMDC instead of hot gas, as well as explosive
SMDC lines?
charges instead of actuators found in hot gas systems.
Q3-23.
Explosive manifolds provide support for
The S-3 emergency egress system is less susceptible
mounting the lines to the aircraft structure.
to inadvertent actuation than hot gas systems, and
more convenient and safer for maintenance per-
Q3-24.
What component prevents explosive transfer
sonnel.
in one direction only?
This section will describe the components and
Q3-25.
The external canopy jettison handles are used
operation of the frangible escape canopy system.
for what purpose?
COMPONENT DESCRIPTION
FRANGIBLE ESCAPE CANOPY
SYSTEMS
The emergency egress system consists of two
window/hatch external jettison handle/initiators, three
LEARNING OBJECTIVE: Describe the
window/hatch internal jettison handles/initiators,
frangible escape system and its components.
window and hatch explosive charges, fillet-severance
The S-3 aircraft frangible escape system (fig. 3-8)
and fillet-support severance explosive-shaped charges,
provides a means of escape from the aircraft for
SMDC, FCDC, and SMDC one-way transfers.
LEFT FILLET
SUPPORT SEVERANCE
SENSO HATCH
EXPLOSIVE-SHAPED CHARGE
INTERNAL JETTISON
TRANSFER BLOCK
HANDLE/INITIATOR
(RIGHT OPPOSITE)
TACCO HATCH
LEFT FILLET
INTERNAL
FAIRING (RIGHT
JETTISON HANDLE
OPPOSITE)
INITIATOR
PILOT/COPILOT
WINDOW/HATCH
INTERNAL JETTISON
HANDLE/INITIATOR
LEFT FILLET-
SMDC TUBING
SEVERANCE
ASSEMBLY
EXPLOSIVE-SHAPED
(TYP)
CHARGE TRANSFER
BLOCK (RIGHT OPPOSITE)
LEFT HATCH-SEVERANCE
EXPLOSIVE CHARGE TRANSFER
BLOCK (RIGHT OPPOSITE)
LEFT SMDC
ONE-WAY TRANSFER
(RIGHT OPPOSITE)
LEFT WINDOW-SEVERANCE
EXPLOSIVE CHARGE
TRANSFER BLOCK
(RIGHT OPPOSITE)
LEFT WINDOW/HATCH
EXTERNAL JETTISON
HANDLE/INITIATOR
(RIGHT OPPOSITE)
AMEf0308
Figure 3-8.--Emergency egress system components and plumbing.
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