Two canopy jettison initiators enable the air-crewman to jettison the canopy during emergency conditions, without initiating seat ejection. The canopy may be jettisoned by pulling the canopy emergency jettison initiator handle on either the pilot's or NFO's right instrument panel.

Canopy External Jettison Initiators

Canopy external jettison initiators enable the ground crew to jettison the canopy during ground emergency conditions. Each initiator is manually actuated by pulling its canopy external jettison initiator handle. System and Backup Initiators The system has two system initiators and one backup initiator. One system initiator is located behind each ejection seat. These initiators are actuated by pulling the face curtain or secondary firing control handle. They provide the initial explosive signal for canopy jettison and seat ejection. The backup initiator is on the cockpit turtle deck. This initiator performs a backup function for the safe-and-arm seat ejection module. It is actuated by a lanyard attached to the canopy and the initiator sear linkage. As the canopy is jettisoned, the lanyard actuates linkage to remove the sear and fire the initiator, sending an explosive signal through a 1.1-second time delay to the safe-and-arm module.

Canopy Gas Generator

The canopy gas generator is attached to the lower end of the canopy hydraulic actuator. The canopy gas generator provides high-pressure gas to the actuator, to jettison the canopy.

Inert Connectors

Inert connectors installed throughout SMDC line runs permit interconnection of the SMDC lines. Explosive Manifolds Explosive manifolds installed within SMDC line runs incorporate an internal explosive crossover that permits either SMDC to fire both output SMDC lines. The manifolds also provide structural support for mounting the SMDC lines to the aircraft structure.

One-Way Explosive Transfers

One-way explosive transfers installed within SMDC line runs provide unrestricted explosive transfer in one direction only. If an explosive signal is introduced in the opposite direction, it is blocked.