Bidspirit auction | Sir Frank Whittle signed cover

Sir Frank Whittle signed cover 30th Anniversary 1st UK jet flight RAF Kenley. Air Commodore Sir Frank Whittle, OM, KBE, CB, FRS, FRAeS[1] (1 June 1907 - 8 August 1996) was an English engineer, inventor and Royal Air Force (RAF) air officer. He is credited with co-creating the turbojet engine. A patent was submitted by Maxime Guillaume in 1921 for a similar invention which was technically unfeasible at the time. Whittle's jet engines were developed some years earlier than those of Germany's Hans von Ohain, who designed the first-to-fly turbojet engine as well as Austria's Anselm Franz.