White Crusader is a 12-Meter yacht designed by Ian Howlett and built by Cougar Marine, Southampton for the 1987 Louis Vitton Cup 12-Meter race series.

The winner would have the right to challenge Alan Bond's syndicate and the Royal Perth Yacht Club for the 1987 America's Cup in Fremantle, Western Australia.

The America's Cup potential challenger was officially named by HRH Diana, Princess of Wales at the 1985 Earls Court Boat Show, London.

The more radical boat was used as a trial horse by the British so that White Crusader could have competition to train against whilst in preparation for the Louis Vitton challenger series.

White Crusader met fierce opposition mainly from Chris Dickson with the New Zealand entry Kiwi Magic KZ-7 and Dennis Conner in Stars and Stripes 87 US-55, the latter winning the series and in due course the America's Cup itself from the Australians.