![]() Emergency Escape Disconnect The emergency escape disconnect is located under the canopy deck. Our systems successfully unlock canopies, sever hatches and propel structure away so a clear path for an ejection seat or person is safe to egress the cockpit. The transfer valve acts as a check valve to prevent the backflow of SMDC detonation to the seat components. Canopy / Hatch Jettison is another method of providing the aircrew a clear and safe passage from the cockpit in the event of an emergency on the ground or in the air. One-way Transfer Valve The one-way transfer valve is located on the ballistic panel in the upper equipment bay. The initiator receives inputs from either the internal canopy jettison lever or external canopy jettison handles to initiate the jettison sequence. Canopy Jettison SMDC Initiator The canopy jettison shielded mild detonating cord (SMDC) initiator is located below the canopy jettison lever. 2-11.) The lever gives the pilot the capability of starting the emergency canopy jettison sequence from inside the cockpit. Internal Canopy Jettison Lever The internal canopy jettison lever is located to the left of the main instrument panel. Figure 2-10.-External canopy jettison handle. This single, common cable runs through the bulkhead into the cockpit, where it connects to the internal canopy jettison lever linkage. The cables are routed through the gun bay and are joined to a common cable at the cockpit forward pressure bulkhead. 2-1 and 2-10.) Each handle is attached to approximately 8 feet of cable. External Canopy Jettison Handles And Cables The external canopy jettison handles and cables are stowed behind doors on each side of the aircraft near the radome. COMPONENTS Before discussing the internal and external methods of jettisoning the canopy, a description of the systems components is needed. This is accomplished by pulling the ejection control handle on the ejection seat. It can also be jettisoned by initiating ejection. The canopy can be jettisoned internally or externally without initiating seat ejection. The emergency canopy jettison system provides the capability to ballistically jettison the canopy in case of an emergency. EMERGENCY CANOPY JETTISON SYSTEM Learning Objective: Recognize the system components and procedures for emergency canopy jettison. The actuator is equipped with a mechanical torque limiter that prevents damage to the actuator if excessive torque is applied to the manual backup control mode. The brake engages to hold the canopy at any position when manual cranking is stopped. Manually operating the canopy overrides the mechanical brake in the canopy actuator. A 3/8-inch drive tool is inserted into the drive receptacle and turned 35☑ turns counterclockwise to open the canopy or clockwise to close the canopy. During emergency ground egress, without seat ejection, the explosive signal provided by the canopy jettison initiator is blocked from entering the SMDC lines of. As previously stated, the canopy external manual drive receptacle is provided to operate the canopy actuator manual drive unit from outside the cockpit. DG 505: Open the white-red canopy opening handle (on your left) with your right hand.
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