World's greatest air show will boost British exports. 6000 guests from all over the world are attending the world's greatest aircraft exhibition and fly display which opened today at the Handley Page Aerodrome at Radlett, Herts. Over 70 different aircraft, ranging from giant airliners, jet propelled military aircraft and private owner planes to gliders, there to attract the foreign buyers. The show is organised by the Society of British Aircraft Constructors. Photo shows, an unusual view of the 'Flying Drainpipe'the Cierve W9 helicopter. In this aircraft the normal torue compensating screw at the tail is replaced by a friend, through which gases from the engine rejected down the tubular construction of the fuselage. 9 September 1947