1952 Farnborough Airshow DH.110 Crash

The 1952 Farnborough Airshow DH.110 crash was an air show accident that killed 29 spectators, the pilot (John Derry), and the onboard flight test observer (Anthony Richards). The DH.110, a prototype, was being demonstrated when during a manoeuvre, the aircraft broke up. The cause was a faulty wing leading edge design. The DH.110 was grounded and strict safety procedures were subsequently enacted (no member of the public has been killed at a British air show since). After modifications to the design the DH.110 entered service with the Royal Navy as the de Havilland Sea Vixen.