|Yacht club||Royal Perth Yacht Club|
Australian Government c.1985
|Notable victories||1983 Louis Vuitton Cup
1983 America's Cup
|Length||19.21 metres (63.0 ft) (LOA)
13.10 metres (43.0 ft) (LWL)
|Beam||3.64 metres (11.9 ft)|
|Draft||2.72 metres (8 ft 11 in)|
|Sail area||175 square metres (1,880 sq ft)|
Australia II (KA 6) is an Australian 12-metre-class America's Cup challenge racing yacht that was launched in 1982 and won the 1983 America's Cup for the Royal Perth Yacht Club. Skippered by John Bertrand, she was the first successful Cup challenger, ending a 132-year tenure (with 26 successful defences) by the New York Yacht Club.
Australia II was designed by Ben Lexcen, built by Steve Ward, owned by Alan Bond and helmed by John Bertrand. 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 center of gravity) but was a significant disadvantage in choppy seas. The boat was also very quick in stays. The winged keel was a major design advance, and its legality was questioned by the New York Yacht Club. During the summer of 1983, as selection trials took place for the Cup defence that autumn, the New York Yacht Club challenged the legality of the keel design. The controversy was decided in Australia II 's favour.
Australia II sported a number of other innovative features that contributed to her success, including radical vertical sail designs, all kevlar running rigging and a lightweight carbon fibre boom.
Later claims of Dutch design
In 2009, Dutch naval architect Peter van Oossanen claimed that the winged keel was actually designed by him and his group of Dutch designers, and not Ben Lexcen. If true, this would have been reason to disqualify Australia II, since the rules state that the yacht is to be designed by citizens of the nation it represents. The controversy arose due to Cup Rules allowing designers to use model basins for testing that are not located in the challenging country. Model testing was performed in the Netherlands and Peter van Oossanen and another Dutch engineer, Joop Sloof, performed measurements and analyses related to evaluation of winged keel designs. The suggestion that the vessel was not designed by Australians has been refuted by both John Bertrand and project manager John Longley. Furthermore, it is well established that Lexcen had been experimenting with wing adaptations to the undersurface appendages of boats before, including his 1958 skiffs Taipan and Venom, although in the latter application they were not determined to be effective and not further adopted. In 1983 Lexcen commented on the controversy: "I have in mind to admit it all to the New York Yacht Club that I really owe the secret of the design to a Greek guy who helped me out and was invaluable. He's been dead for 2000 years. Bloody Archimedes..."
Louis Vuitton Cup
Australia II, bearing sail number KA6, represented the Royal Perth Yacht Club of Australia in its September 1983 challenge for the America's Cup. The defender, the New York Yacht Club, had held the cup since 1851, dominating challengers and sustaining the longest winning streak in sport.
Australia II, skippered by John Bertrand, faced Dennis Conner sailing the 12-metre Liberty in the ocean off Newport, Rhode Island. Australia II came from behind to prevail 4 races to 3. The victory on 26 September 1983 was a landmark event for the nation of Australia, not to mention the Royal Perth Yacht Club. The achievement was underscored when Australia II was awarded the ABC Wide World of Sports Athlete of the Year for 1983.
The crew of Australia II for the America's Cup races was John Bertrand (skipper), Colin Beashel, Will Baillieu, Peter Costello, Damian Fewster, Ken Judge, Skip Lissiman, John Longley, Brian Richardson, Phil Smidmore, Grant Simmer, and Hugh Treharne. The reserves were Rob Brown, Jim Hardy, Scott McAllister. Beashel was an Olympic medal winning sailor who competed at six Olympic games. Richardson was an Olympic oarsman who had stroked the Australian men's VIII at the Moscow 1980 Olympics.
The Boxing Kangaroo was the official mascot of the Australia II effort.
In the film Wind, Australia II is portrayed as Boomerang.
In the mid-1980s, Australia II was sold by Alan Bond to the Australian government. She was loaned to the Australian National Maritime Museum in Sydney for display in 1991. In 2000, Australia II was removed from the National Maritime Museum and transferred to the Western Australian Maritime Museum in Fremantle. For the 150th anniversary celebrations of the America's Cup in 2001, she was removed from the museum and shipped to the Isle of Wight, sailing with the original crew for several days of commemorative regattas. Australia II was returned to the Western Australian Maritime Museum, where she is on permanent display.
- J.T. "1983 – Australia II – KA 6". 33rd America's Cup. Archived from the original on 7 July 2011. Retrieved 3 May 2011.
- Anderson, Dave (5 May 1988). "Sports of the Times; Yachting's Crocodile Dundee". Sports. The New York Times.
- Feneley, Rick (14 October 2009). "Winged keel not Lexcen's design, Dutch architect claims". The Age (Melbourne, Australia).
- Spurr, Dan (October–November 2009). "Winged Victory". Professional Boatbuilder (121).
- Donald, Timothy (14 October 2009). "Dutchman Claims Australia II Keel Design". ABC News.
- Longley, John (19 October 2009). "Scuttlebutt News". Scuttlebutt News (letter).[unreliable source?]
- Robinson, Blue (2 October 2009) . "Ben Lexcen: A crazy, lovable rogue". Scuttlebutt News.
- "1983 – Australia II – KA 6". Ac-clopedia. AC Management S.A. Sucursal en España. 25 September 2011. Retrieved 24 April 2012.[dead link]
- "Go west: Australia II heads for home". The Sydney Morning Herald. 27 October 2000. p. 3.
- McCormick, Herb (19 August 2001). "THE BOATING REPORT; Past and Present Toast America's Cup Together". New York Times. Retrieved 10 February 2014.
- Schmitt, Hugh. (1987) Australia II – details on the housing of the yacht The West Australian 28 May 1987, p. 16a-c b
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