Vessel having parallel hulls with 360 degree rotatable thrusters
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United States of America Patent
Stats
-
Apr 8, 1986
Grant Date -
N/A
app pub date -
Feb 23, 1984
filing date -
Mar 4, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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