Developed to bring the RAF into the supersonic age, the aircraft was able to fly at twice the speed of sound. In fact, it had such a power to weight ratio that it could stand on its tail and exceed the speed of sound in a vertical climb. In this episode of Duxford in Depth, Liam Shaw takes a detailed look at the Lightning's design, development, armament and service history as well as 'Taffy' Holden's accidental flight.