AFT EXTREMITY OF SHIP'S HULL Russian patent published in 1996 - IPC

FIELD: shipbuilding; design of aft extremity of single-shaft ships. SUBSTANCE: central skeg of ship's hull is connected with aft extremity over line of break and each buttock passing between central skeg and each side of ship's hull has two points of bending: one point is located in area of intersection of this butock with horizontal plane passing through line of propeller shaft and other point is located in area of intersection of this buttock with plane passing through propeller disk. Block coefficient of ship's hull is no less than 0.8; bottom legs of frames are inclined to base plane at angle ranging from 0 to 15 deg and are engageable with side legs of these frames over radius. EFFECT: enhanced reliability. 2 cl, 4 dwg