Ken Warby is an Australian speedboat racer best known for setting the world water speed record. In 1978, he achieved a remarkable speed of 318.60 miles per hour (512.11 km/h) on the Blowering Dam in New South Wales, using his custom-built boat, the Spirit of Australia. This record still stands today, making him a prominent figure in the world of motorsports. Warby's passion for speed began in his youth, and he dedicated years to perfecting his craft. His achievements have inspired many in the field of powerboat racing, and he remains a celebrated icon in Australia for his contributions to the sport.