Gloster E.28/39
The Gloster E.28/39, (also referred to as the Gloster Whittle, Gloster Pioneer, or Gloster G.40) was the first British turbojet-engined aircraft, first flying in 1941. It was the third turbojet aircraft to fly after the German Heinkel He 178 (1939) and Heinkel He 280 (1941).