South Australia 12 KA 8

Overview & Origins

South Australia (KA-8) is an International 12-Metre class racing yacht built in 1985 under the Third Rule of the America’s Cup. Designed by the legendary Australian naval architect Ben Lexcen and constructed by Steve E. Ward & Co., the yacht was commissioned by the South Australia Challenge for the Defense 1987 syndicate. The campaign was spearheaded by Roger Lloyd and supported by 150 private sponsors and a significant government subsidy from South Australia.

Design & Specifications

The hull of South Australia is built from aluminium alloy, giving the yacht strength and lighter weight for performance. Key specifications include:

  • Length overall: ~ 19.51 metres

  • Length at waterline: ~ 13.40 metres

  • Beam (width): ~ 3.60 metres

  • Draft (depth below waterline): ~ 2.63 metres

  • Displacement: ~ 24.32 tonnes

  • Sail area: ~ 179.5 square metres

These dimensions place KA-8 firmly in the powerful yet delicate balance required for high-level 12mR racing, where hydrodynamics, weight distribution, sail plan, and hull stiffness all matter greatly.

Racing History

KA-8 was one of six Australian yachts vying to defend the 1987 America’s Cup in Perth. Despite high hopes, it didn’t win the defender trials. The design showed strength in light wind conditions, but like many of its contemporaries, struggled more in heavier, more turbulent wind and sea conditions—which were typical in Fremantle.

Later Changes & Current Status

After its initial racing career, South Australia also sailed under the name New Sweden for a period when it was registered in Sweden. More recently, its current owner is Christophe Babule, and the yacht is based in Nice, France, competing in the Grand Prix division of the 12-Metre circuit. It remains active on the international scene, including appearances at events like the Porquerolles Regatta.