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In cases of very thick ice, an icebreaker can drive its bow onto the ice to break it under the weight of the ship. A buildup of broken ice in front of a ship can slow it down much more than the breaking of the ice itself, so icebreakers have a specially designed hull to direct the broken ice around or under the vessel.
Snow Squall was an extreme wooden American clipper ship built in Maine for the China trade. A large part of her bow was preserved and is the sole remaining example of the American-built clipper ships.
The broken sections of floe closed in around the ship on all sides, jarring the Endurance forward, backwards and sideways in violent fashion against the other slabs of ice. After over a quarter of an hour, a force from astern pushed the ship's bow up onto the floe, lifting the hull out of the pressure and with a list of five degrees to her port ...
Glacier in 1956.. Glacier was essentially an improved Wind-class icebreaker, larger and more powerful.Like them, her entire hull was designed for great strength. With a relatively short length in proportion to the great power developed, her bow had the characteristic sloping forefoot that enabled her to ride up on heavy ice and break it with the weight of the vessel.
AAW An acronym for anti-aircraft warfare. aback (of a sail) Filled by the wind on the opposite side to the one normally used to move the vessel forward.On a square-rigged ship, any of the square sails can be braced round to be aback, the purpose of which may be to reduce speed (such as when a ship-of-the-line is keeping station with others), to heave to, or to assist moving the ship's head ...
The last known U.S. slave ship is too “broken” and decayed to be extracted from the murky waters of the Alabama Gulf Coast without being dismembered, a task force of archaeologists, engineers ...
Voima is a Finnish state-owned icebreaker.Built by Wärtsilä Hietalahti shipyard in Helsinki in 1954, she was the first icebreaker in the world to be equipped with two bow propellers [5] [6] [7] and generated widespread publicity that helped the Finnish shipbuilding industry to become the world leader in icebreaker design.
Three of the vessels of the class, Westwind, Southwind, and the first Northwind all went on to serve temporarily for the Soviet Union under the Lend-Lease program, while two others were built for the United States Navy and another was built for the Royal Canadian Navy; all eight vessels were eventually transferred to the United States Coast ...