Flying Guns World War I: development of aircraft guns, ammunition and installations 1914-1932 Flying guns: the modern era development of aircraft guns, ammunition and installations since 1945 Flying guns the development of aircraft guns, ammunition and installations 1933-1945 World Encyclpaedia of Aero Engines Moderne Militaire vliegtuigen : een technisch overzicht van de belangrijkste militaire vliegtuigen van vandaag British Fighters of World War II Helicopters at war Chronicle of Aviation Guns of the Royal Air Force 1939 - 1945 Fighters 1914-1939 Fighters 1914-1945 War planes 1945-1976