B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63H—MARINE PROPULSION OR STEERING
B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
B63H25/06—Steering by rudders
B63H25/38—Rudders
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Chemical & Material Sciences
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Engineering & Computer Science
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Combustion & Propulsion
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Mechanical Engineering
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Ocean & Marine Engineering
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Traffic Control Systems
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Other Liquid Machine Or Engine Such As Wave Power Use
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Bateau comportant des motorisations qui presentent des helices positionnees chacune dans un conduit procurant un fonctionnement optimise en marche avant et une grande maniabilite