The gripping story of one of Britain's greatest experimental test pilots. On 6 September 1948, John Derry became the first pilot in Britain to fly faster than the speed of sound. Exactly 4 years later, he died tragically as his experimental prototype DH110 jet broke up in the air at the Farnborough Air Show in full view of 120,000 spectators. This includes interviews with those who knew and worked with Derry, and is fully illustrated with archive photos.