초록 ▼

A submarine hull which has a half wing-like sail which projects vertically upwards, is provided with a keel-wing that also is half wing-like, but projects vertically downwards. By preference the keel-wing has a lower end plate and its main portion is trailed by two slotted flaps which can be pivotal

A submarine hull which has a half wing-like sail which projects vertically upwards, is provided with a keel-wing that also is half wing-like, but projects vertically downwards. By preference the keel-wing has a lower end plate and its main portion is trailed by two slotted flaps which can be pivotally moved in both directions about respective vertical axes in coordination with movement of the rudder of the submarine. If needed for permitting operation in shallow water or with the hull close to the bottom, the wing can be made to retract. The keel-wing not only counters the sail\s rolling movement and keeps the hull upright, but also adds a side force to assist in tightening the turn.

대표청구항 ▼

A submarine having a decreased tendency to roll in turns while submerged, comprising: an elongated hull having a bow, a stern and a generally cylindrical intermediate portion extending between the bow and stern; said stern being provided with rudder means which can be actuated for steering the hull

A submarine having a decreased tendency to roll in turns while submerged, comprising: an elongated hull having a bow, a stern and a generally cylindrical intermediate portion extending between the bow and stern; said stern being provided with rudder means which can be actuated for steering the hull laterally to the left and to the right relative to an imaginary vertical centerline plane of the hull; actuator means for actuating said rudder means; a conning tower externally provided on the top of said hull in said intermediate portion; and keel-wing means for countering a rolling movement caused by said conning tower when the submarine is executing a turn, said keel-wing means being externally provided on the bottom of said hull at least generally opposite said conning tower, and having at least one portion which is pivotable leftwardly and rightwardly about a respective vertical axis, relative to said vertical centerline plane, for movement in a direction effectively opposite to said rudder when said rudder, as actuated by said actuator means is causing the submarine, while submerged and moving forwardly, to execute a turn.