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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.
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, Alan Bond's famous winged keel boat that won the 1983 America's Cup. The boat that ended the longest winning streak in sport. Designed by Ben Lexcen, Australia II was one of the first racing yachts to use appendages on the keel, which allowed the yacht to point higher, sail faster and be quicker in stays. The keel design also ...
Parry Boat Builder [7] AUS 14: KA–14: 1986: Steak 'n' Kidney: Peter Cole: Consolidated Marine [7] AUS 15: KA–15: 1986: Kookaburra III: Iain Murray & John Swarbrick: Parry Boat Builder [8] AUS 16: KA–16: 1986: Australia IV: Ben Lexcen: Steve E. Ward & Co. CAN 01: KC–1: 1982: Canada One: Bruce Kirby: Fred McConnell Marine, Ltd. [9] CAN 02 ...
The hull is a hard chine design with a slight curve to the bottom section, and a bulb keel. The Star was originally rigged with a large, low-aspect-ratio gunter mainsail and jib, which was replaced by a short bermuda rig gradually during the early 1920s, before the current tall bermuda sail plan was adopted in 1930.
A keelboat is a riverine cargo-capable working boat, or a small- to mid-sized recreational sailing yacht. The boats in the first category have shallow structural keels, and are nearly flat-bottomed and often used leeboards if forced in open water, while modern recreational keelboats have prominent fixed fin keels, and considerable draft. The ...
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).