WATER DISPLACING CRAFT WITH AIR CAVITY ON THE BOTTOM WITH TRIMMING-HEELING SYSTEM Russian patent published in 2016 - IPC B63B1/38 B63B35/10 

FIELD: ship building.

SUBSTANCE: invention relates to ship building and relates to marine large-capacity transport ships with synthetic cavity on the bottom with trimming-heeling system, that are made to be used in ice fields, including conditions of shallow depths of Baltic Sea and Arctic Shelf. Present ship has bottom recess to make single air cavity with wave profile, which starts with redan in the fore part and is limited by skegs on boards and aft vault that has the shape of inclined plate. Recess cavity is linked with air compressing system and with system that drains air out of it. Inside the recess there are lengthwise keels, which divide the cavity into lengthwise sections, and transverse peaks in the form of inclined plates, following downstream one by one. Air draining and air compressing system that are in the lengthwise sections of recess, and also in fore and after deck parts of every lengthwise section, limited with peaks, are made independent from each other with possibility of separate supply and bleeding of air.

EFFECT: invention is made to improve exploitation parameters, increase economic efficiency and improve icebreaking capability of marine large-capacity transport ships with air cavity on the bottom.

1 cl, 2 dwg