FIELD: shipbuilding; tourist submarines. SUBSTANCE: hull of tourist submarine includes plating, framing and rows of portlights on each side; besides that row of upper portlights is provided on each side; longitudinal stringers with longitudinal wall are mounted over edges of these portlights; space between them is used as ballast tank. EFFECT: improved observation of underwater situation at retained strength characteristics. 3 dwg
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Authors
Dates
1998-04-10—Published
1996-01-31—Filed