The H.126 was an English experimental aircraft designed and built by Hunting Aircraft in order to test the concept of blown flaps, or as they were known in Britain, "jet flaps". Only one aircraft was built, being flown in a series of one-hundred test flights at the Royal Aircraft Establishment's Aerodynamics Flight at RAE Bedford. It was then sent to the United States for wind tunnel testing by NASA, and eventually made its way to the museum at RAF Cosford.