SUBMARINE Russian patent published in 2003 - IPC

FIELD: shipbuilding; devices for increasing buoyancy of submarines. SUBSTANCE: proposed submarine has hull, reservoirs for change of her buoyancy by filling them with sea water and air and additional air reservoirs for emergency surfacing of submarine which are located above her CG. Submarine is provided with solid ballast having ferromagnetic cushion located on side of surface adjoining the submarine hull. Electromagnets mounted inside submarine hull interact with said cushion. Additional air reservoirs are rigidly connected to side surfaces of submarine along her and symmetrically relative to her longitudinal axis. Solid ballast is provided with mechanical retainers. EFFECT: possibility of fast surfacing in an emergency. 3 cl, 3 dwg