Civil small-sized U-boat, has cylindrically elongated pressure body, three dome-shaped front windows that are integrated in structure of boat, and two upper glass domes elongated at base by cylindrical or conical ring

摘要

The boat has a cylindrically elongated pressure body, three dome-shaped front windows (6) that are integrated in a structure of the boat, and two upper glass domes (1) elongated at a base by a cylindrical or conical ring (2). A flow line-like immersion cell (3) is outwardly fitted at the body. The boat is provided with an outward outer lining (4) including a star board- and port-sided bulb in a front area of the lining. The cell has a pneumatically controlled pressure cylinder for opening a flood valve (5). A movable flipper is combined with a fixed or movable bow rudder at a rear of the boat.