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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 ...
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.
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.
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 ...
Yngling. The Yngling is a racing keelboat, built predominantly of fibreglass, with wood trim.It has a fractional sloop rig with aluminum spars. The hull has a spooned raked stem, a raised counter reverse transom, an internally mounted spade-type rudder controlled by a tiller and a swept fixed fin keel.
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).
Top women's storylines. It's Aryna Sabalenka's world, and we're all just living in it. After winning the 2023 Australian Open and making the US Open final, she began 2024 by winning the Aussie ...
The Austral 20 is a roomy and easy to sail design, for which Austral Yachts won a design award in 1979. The hull is fibreglass construction with built in flotation. The hull contains 68 kg (150 lb) of lead moulded into the keel plus another 145 kg (320 lb) in the plate centreboard.