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The Ice Breaker Tournament (also called the Ice Breaker Invitational or the Ice Breaker Cup) is a college Division I men's ice hockey tournament played annually at the start of each season. [ 1 ] The tournament began play in 1997 as an exhibition [ 2 ] and was created as an early-season showcase for top-ranked teams from four separate conferences.
Polar-class icebreakers USCGC Polar Star (WAGB-10), USCGC Polar Sea (WAGB-11) are heavy icebreakers operated by the United States Coast Guard (USCG). These cutters, specifically designed for icebreaking, have reinforced hulls, special icebreaking bows, and a system that allows rapid shifting of ballast to increase the effectiveness of their icebreaking.
[26] [27] With a total propulsion power of 60 megawatts (80,000 hp), Chukotka is designed to be capable of breaking 2.8 metres (9 ft) thick level ice at a continuous speed of 1.5–2 knots (2.8–3.7 km/h; 1.7–2.3 mph) at full power when operating in deep water at design draught.