Bladder, Flight, DK (Deck)
The Bladder, Flight, DK was the inflatable flotation bladder fitted inside the U.S. Navy Life Preserver, Vest Type MK-1. Manufactured by Switlik Parachute Co, Inc. in 1991, the polyurethane-coated nylon bladder provided approximately 15 kg (29 lb) of buoyancy through a twin CO₂ cylinder inflation system and oral inflation tube.
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The United States
