Icebreaker for operation preferably in shallow freezing water
The invention relates to shipbuilding, and more specifically to the icebreakers and tugboats intended for operation in ice in shallow water conditions. The proposed invention is aimed to improve maneuverability of the ship running both ahead and astern in constrained environment in ice and in open w...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to shipbuilding, and more specifically to the icebreakers and tugboats intended for operation in ice in shallow water conditions. The proposed invention is aimed to improve maneuverability of the ship running both ahead and astern in constrained environment in ice and in open water, as well as to improve its icegoing capabilities and to effectively handle air penetration to the operating AZT propellers and ship propulsors. For this purpose the icebreaker intended for operation preferably in shallow freezing waters comprising a hull with a sled-like stern overhang having flat bottom and ice protection shield along the perimeter of the overhang, and podded propulsion system disposed in the overhang and comprising two side propulsors mounted on the shafts symmetrically to the ship's CL, and arranged with regard to hull height so that the propulsor's tip edges do not protrude beyond the ship's base plane and design waterline at the propellers' location, and, according to the invention, is fi |
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