Early airplanes Sir George Cayley : the Inventor of the Aeroplane From Bleriot...to Spitfire : flying the Historic Aeroplanes of the Shuttleworth Collection Planning and Organizing the Postwar Air Force 1943-1947 Military planning in the twentieth century Airplane : de complete luchtvaart-encyclopedie : Band 1 Airplane : de complete luchtvaart-encyclopedie : Band 2 Airplane : de complete luchtvaart-encyclopedie : Band 3 Airplane : de complete luchtvaart-encyclopedie : Band 4 Airplane : de complete luchtvaart-encyclopedie : Band 5 Airplane : de complete luchtvaart-encyclopedie : Band 6 Airplane : de complete luchtvaart-encyclopedie : Band 7