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Under the 12 metre class rule, the allowed sail area is an inverse function of the boat length and weight. Her stability advantage allowed Australia II to carry more sail although the boat was lighter. Along with Australia II ' s efficient sail design, this winged keel was one of the factors contributing to Australia II ' s success. Total ...
Benjamin Lexcen AM (born Robert Clyde Miller, 19 March 1936 – 1 May 1988) was an Australian yachtsman and marine architect.He is famous for the winged keel design applied to Australia II which, in 1983, became the first non-American yacht to win the prestigious America's Cup in 132 years.
Australia II was designed by Ben Lexcen, built by Steve Ward, owned by Alan Bond and skippered by John Bertrand. [2] Lexcen's Australia II design featured a reduced waterline length and a short chord winged keel which gave the boat a significant advantage in manoeuvrability and heeling moment (lower ballast centre of gravity) but it was a significant disadvantage in choppy seas.
Soldiers at sea : an unofficial history of the Australian Water Transport Units of the Royal Australian Engineers, 2nd A.I.F. Strathfield, N.S.W. : Australian Water Transport Association. ISBN 0646007149; Australian Water Transport Association, 1992. Soldiers at sea, Mk II : an unofficial history of the maritime units of the Australian Army.
Australia (KA–5) is an Australian 12-metre-class America's Cup racing yacht that twice challenged unsuccessfully for the America's Cup in 1977 and 1980. Designed by Ben Lexcen in association with the Dutch designer Johan Valentijn for Alan Bond, Australia failed to win a single race against the 1977 defender, Courageous (US-26), but won one race against the 1980 defender, Freedom (US-30).
A keel boat, [1] keelboat, [1] or keel-boat [2] is a type of usually long, narrow cigar-shaped riverboat, [1] or unsheltered water barge which is sometimes also called a poleboat—that is built about a slight keel and is designed as a boat built for the navigation of rivers, shallow lakes, and sometimes canals that were commonly used in ...
A gaff cutter, Kleine Freiheit, with a genoa jib set USCGC Legare, an example of a US Coast Guard cutter A cutter is any of various types of watercraft.The term can refer to the rig (sail plan) of a sailing vessel (but with regional differences in definition), to a governmental enforcement agency vessel (such as a coast guard or border force cutter), to a type of ship's boat which can be used ...
As a result, the majority of Australia's military weapons and equipment were initially imported from the United Kingdom or the United States. However, as the war progressed, many of these imported items were gradually replaced by locally produced versions, as Australia's industrial capacity expanded to meet the demands of the conflict.