Vessel having parallel hulls with 360 degree rotatable thrusters

Details Vessel having parallel hulls with 360 degree rotatable thrusters Vessel having parallel hulls with 360 degree rotatable thrusters

1984-02-23

1986-04-08

Barefoot, Galen L.

Ships

Steering mechanism

Remote control steering excluding manual operation

114151, 114 61, 114265, 440 53, 440 67, 440 79, B63H 512

Patent

active

045805172

ABSTRACT:
The location of azimuth thruster propellers at the parallel hulls of semisubmersible offshore vessels, is arranged so the water jet from a propeller at one hull, which is occasionally directed towards the adjacent hull will pass mainly below last-mentioned hull. When thruster propellers are arranged in pairs the bottoms of the hulls will preferably be inclined upwardly/outwardly within the portion around a thruster propeller located outside of a longitudinal middle plane through the hull. In order to facilitate the docking of the vessel, the bottom plating in the fore and aft bodies of the hulls, where the thruster propellers are mounted, should be raised sufficient to prevent the propellers projecting below the base lines of the hulls.

REFERENCES:
patent: 2655891 (1953-10-01), Gorski
patent: 3487805 (1970-01-01), Satterthwarte et al.
patent: 3771481 (1973-11-01), Goren et al.
patent: 4310319 (1982-01-01), Fuller
patent: 4436050 (1984-03-01), Liden

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