SUBMARINE PIRANIA Russian patent published in 2003 - IPC

FIELD: shipbuilding; construction of submarines designed for destruction of hostile submarines and other hostile ships. SUBSTANCE: proposed submarine has three hulls. Central hull is located above plane of connection of side hulls; all hulls are interconnected by means of inter-hull attachments. All hulls are provided with steering gears and power plants. Propellers of power plants lie in one vertical plane in angles of vertices of conventional equilateral triangle. Mounted in between hulls are at least three hydrofoils at adjustable angle of attack. Provision is made for supply of electric power from each power plant to other two hulls. Side hulls are provided with armament. Inter-hull attachments and hydrofoils are provided with elongated hollow charges. EFFECT: enhanced combat efficiency. 2 cl, 3 dwg