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Submarine hull
Structural and hydrodynamic component enclosing the vessel / From Wikipedia, the free encyclopedia
A submarine hull has two major components, the light hull and the pressure hull. The light hull (casing in British usage) of a submarine is the outer non-watertight hull which provides a hydrodynamically efficient shape. The pressure hull is the inner hull of a submarine that maintains structural integrity with the difference between outside and inside pressure at depth.
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