Figure 6-42.—Headrest and drogue container assemblies.disconnect assembly. The riser assemblies withlanyards initiate the spreading gun and the seatand man separation.When the parachute container opener isactuated, either one of the two locking clips willdisengage and release a ball fitting on the end ofa restraining cable. This action allows thecontainer to open and the main canopy assemblyto deploy. The canopy assembly is propelled bythe WORD bridle, which is acted upon by theforce of the drogue and WORD motor. Shouldthe WORD bridle fail, the internal pilot parachutefunctions as a backup system.When the main canopy and suspension linesare fully deployed, the spreading-gun firinglanyard exerts tension on a spring-loaded firingpin in the ballistic spreading-gun assembly. Thispin is withdrawn until the pin-locking balls slipinto a groove in the gun housing. Then, thefiring pin, driven by spring force, releases, strikes,and fires dual primers that ignite the spreadinggun cartridge. Cartridge energy drives 14 pistons(attached to alternate suspension lines), which6-59
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