Bluebird K7 was a boat built for Donald Campbell to break the World Water Speed Record. Bluebird was a special kind of boat, called a hydroplane, that skims over the top of the water instead of pushing through it like a normal boat. Bluebird was powered by a jet engine. It set new world water speed records seven times; the fastest was 276 mph (445 km/h). Bluebird was destroyed when Campbell tried to set an eighth record by going faster than 300 mph (480 km/h) on Coniston Water in 1967.