INTERNAL CANOPY AND HATCH JETTISON INITIATOR

The external initiators have no safety pins as such, but rely upon the 10-foot lanyard to protect them against inadvertent initiation. Operation of either external handle will cause all four hatches, fillets, and supports to be blown away from the aircraft. Partial withdrawal of any handle is cause for rejection and replacement. INTERNAL CANOPY AND HATCH JETTISON INITIATOR The internal initiator is used to actuate the canopy and hatch system without activating the ejection seat system. Three internal initiators are located in the S-3A aircraft crew compartment. One initiator is located in the overhead between the pilot and copilot. The other two are located at the TACCO and SENSO positions on the out- board side of each instrument panel (fig. 2-15). The initiator is a mechanically actuated sealed- in device containing a squeeze-to-pull type of han- dle (fig. 2-1 5), a mechanical firing mechanism, and a transfer booster assembly. The mechanical firing mechanism and transfer booster assembly are identical to those used in the external system. Figure 2-15.—Internal canopy and hatch jettison initiator. 2-19