FIELD: shipbuilding. SUBSTANCE: aft sections of side skegs extends beyond hull transom lengthwise; aft end cover is located between them; this cover is made in form of hollow displacement rotor with horizontal axis of rotation; cover has slots on its surface through which blades are passed; blades may rotate about axis which does not coincide with axis of rotation of rotor. Formed between transom of ship's hull and surface of rotor is slotted passage which brings air cushion in communication with atmosphere. Hull transom is outlined in its longitudinal section over arc of circle swept by end edges. EFFECT: enhanced reliability. 3 dwg
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