B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
B63H—MARINE PROPULSION OR STEERING
B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
Landscapes
Chemical & Material Sciences
(AREA)
Engineering & Computer Science
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Combustion & Propulsion
(AREA)
Mechanical Engineering
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Ocean & Marine Engineering
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Other Liquid Machine Or Engine Such As Wave Power Use
(AREA)
Gouvernail alternatif a deux pales a position angulaire pouvant etre fixe ou ajustable et a action par immersion plus ou moins importante de l'une ou l'autre pour obtenir l'action choisie
Surface de sustentation pour moyen de transport sur l'eau ou une surface enneigee et moyen de transport comportant une telle surface de sustentation.