SportThe Sport class is a fiercly competitive class, featuring high-performance aircraft with engines less than 1,000 cu in. Race-driven engine and airframe technology is featured in this class, as it pushes the limits of aeronautics to win. CAD and cutting edge materials find their favorite home in this class, in which the. Aircraft race on a 6.37-mile course at speeds reaching over 350 mph. You can find many of the aircraft at home on their fields the rest of the year, being flown as the owners favorite planes. Cost to take part in the class is higher, and it is often the class Formula 1 and Biplane racers move into as they build a team and sponsors. The Sport class truly represents the attitude of innovation that has always dwelt in air racing.