The present invention relates to a capsule sized to contain a weapon for launching and to withstand depth pressures. A telescoping nose section of the capsule, normally unextended around the weapon, extends at launch along a longitudinal axis of the capsule to provide the buoyancy used to lift the capsule out of a stored state and to ascent the capsule towards the surface. Once the surface is reached, a nose cone of the capsule is jettisoned to allow the weapon to exit the capsule.

 
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> High-lift, low drag fin for surfboard and other watercraft

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