National powerboat racing teams compete for national and international titles in these hydroplane racing circuits. The "limited" classes of inboard hydroplane racing are organized under the name Inboard Powerboat Circuit. The modern turbine-powered unlimited hydroplane is derived from the 3-point prop-riding hydroplanes of the 1950s. Modified Outboard Hydroplane Racing classes are powered by modified stock outboard class motors. The two types of hull shape are runabout and hydroplane. Blackburn also authored a book on outboard hydroplane racing. Metro Detroit hosts many annual sporting events including auto and hydroplane racing. Runabout is a v-shape and hydroplane is flat and stepped. After the destruction of the Tempo Alcoa, Lombardo retired from hydroplane racing. Columbia Park hosts the HAPO Gold Cup, an annual hydroplane race. The 1980 "Miss Budweiser" Unlimited Hydroplane dominated the race circuit with a Rolls-Royce Griffon engine. In January 1967, he was killed in his water-speed record jet hydroplane Bluebird K7. Hill raced an all white blown-fuel hydroplane from 1978 to 1984. Andy Chesman won the 1972 World Hydroplane championship using an Imp engine. Pontiac Lake is home to the annual "Quake on the Lake" hydroplane races.