Using eyewitness recordings from the BBC archive we hear from the pioneers of the jet engine, Sir Frank Whittle and Hans von Ohain, about the struggle to develop a revolutionary new engine in the 1930s. An invention which would change the world.
Photo: Sir Frank Whittle (1907-1996) is pictured here with the Whittle WV engine at the Science Museum in London c 1988 (Getty Images)
