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David Vinckboons: Landscape with skaters (cca. 1615), 17th century boer type iceboats Boer Ice sailing in the Netherlands in 1938. An iceboat (occasionally spelled ice boat or traditionally called an ice yacht) is a recreational or competition sailing craft supported on metal runners for traveling over ice. One of the runners is steerable.
Conceptual design of Project Habakkuk aircraft carrier with 600-metre (1,969 ft) runway. Project Habakkuk or Habbakuk (spelling varies) was a plan by the British during the Second World War to construct an aircraft carrier out of pykrete, a mixture of wood pulp and ice, for use against German U-boats in the mid-Atlantic, which were beyond the flight range of land-based planes at that time.
The International DN is a class of iceboat.The name stands for Detroit News, where the first iceboat of this type was designed and built in the winter of 1936–1937.. Archie Arrol was a master craftsman working in the Detroit News hobby shop, and together with iceboaters Joe Lodge and Norman Jarrait designed a racing boat they called the "Blue Streak 60", later to become known as the
Nipping occurs when ice floes around a ship are pushed against the ship, trapping it as if in a vise and causing damage. This vise-like action is caused by the force of winds and tides on ice formations. A 17th-century Russian koch in a museum. The first boats to be used in the polar waters were those of the Eskimos.
In addition to pulling ropes attached to the iceboat, hand-holds were molded along the outer gunwales which were used for hauling the iceboat over sea ice until reaching stretches of open water. Crews and passengers faced stretches of open water, the sea ice, and slush ice that was in the process of freezing, which could make progress difficult.
Each iceboat had the cargo capacity of 1.5 to 2.0 metric tons (3,300 to 4,400 lb) and was equipped with long runners (5 to 7 m or 16 to 23 ft) for portage on ice. If a koch became trapped in the ice, its rounded bodylines below the water-line would allow for the ship, squeezed by the ice-fields, to be pushed up out of the water and onto the ice ...
Icicle is the name of the largest ice yacht ever built. It was built for John Aspinwall Roosevelt for racing on the Hudson River, New York state in 1869. It was 21 metres (68 ft 11 in) long and carried 99 square metres (1,070 sq ft) of canvas.
City Ice Boat No. 3, commonly known as Ice Boat No. 3 or just No. 3, was a municipal sidewheel icebreaker built in 1873 to assist in keeping Philadelphia's waterways free of ice during the winter months. The vessel was also used for occasional excursions and other duties through the rest of the year.