Engineered Inflatables > Inflatable Structures > Trident Nozzle Stabilizers Lockheed Missiles & Space After the failure of the first underwater launch of the Trident II missile, several device designs were considered to keep sea water out of the nozzle. Mission Rqmt: Stabilize Engine Bell During Transition From Launch to Surface Schedule: 3 Months from ATP to Full Scale Test and Level III TDP w/Specifications Design 1: Engine Bell Launch Deflection Prevention Plug Environment and Construction Silicone Coated Kevlar Bag with Urethane FilmBladder 300 psi Operating Pressure, Proof at 500 psi Restraint to Survive 500F+ Launch Tube Environment 10 Year Minimum Operating Life Design 2: Nozzle Motion Attenuation Device (Snubber) Environment and Construction 300 psi, 500o Operating Rqmts 500 psi Burst Pressure 7 g Acceleration 25 Year Storage Life Silicone Coated Kevlar For more information on Engineered Inflatables, please contact Gil Baird.