METHOD OF PASSAGE OF WIDE SHIP THROUGH ICE FIELD AND ICE-BREAKER FOR REALIZATION OF THIS METHOD Russian patent published in 2003 - IPC

FIELD: shipbuilding; ice-breakers. SUBSTANCE: passage for motion of wide ship through ice field is ensured by ice-breaker having rather narrow hull. Proposed ice-breaker has two controllable engine plants mounted at opposite ends of hull for motion of ice-breaker through ice field at considerable angle relative to its keel line; channel is opened by one passage of ice-breaker and its width considerably exceeds breadth of ice-breaker on waterline. EFFECT: enhanced operational and economical efficiency. 15 cl, 4 dwg