A short clip of Sean D.Tucker flinging his Oracle Challenger III through some impressive negative G manoeuvres at the 2012 Miramar Air Show.The Oracle Challenger III biplane, is claimed to produce more than 400 horsepower, and weighs only 1,200 pounds. The Challenger III is equipped with a unique set of wings that use 8 ailerons instead of 4. The tail on the airplane is modeled after the tail used on high-performance radio control airplanes.
Source: You Tube