Britain Shows Her Latest Aircraft -- The Cierva Autogiro Co's Air Horse a 24-seater helicopter, with rolls-***** Merilin engine, displaying its amazing flying powers at the exhibition to-day. The full strength of Britain's air challenge to the world was demonstrated at Farnborough, Hants, today at the Society of British Aircraft Constructors' annual flying display and exhibition. Airline executives and buyers form all over the world were Present. September 6, 1949. (Photo by Fox Photos).