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INDEX A Aberdeen Proving Ground, accidental explosion of bomb at, 47-8 Aboukir, British cruiser, sinking of, 100 Actium, battle of, 20 Advertising, use of airplanesin, 79 Aerial Forest Patrol, 80 Aerial routes, 13-14 Aerial siege, 5 Aerial torpedoes, controlled by wireless telegraphy, 6 Aeronautical Board, the, 237-8 Aeronautical era, the, 3 ff. Aeronautical research, relation of, to national defense, 244-5 Aeronautics, leadership in, goes to the United States, 27 fl.; modern, 139 ff. Agriculture, science of aircraft to, 145 Air, the most vast and important element of the earth, 3; supremacy of, 9, 10; "holes" in, 13 ; possibilities of complete control of, 25-6 Aircraft industry, relation of, to national defense, 245-7 Aircraft, range of, 4 fl.; mobility of, 4; weapons possessed by, 4, 47, 58, 59; vulnerability of seacraft to attack by, 4-5; aerial siege by,S; effectiveness against centers of munition production, 5-6; effect of, on strategy, 6; no longer a mere auxiliary in war253 fare, 8; fight in three dimensions , 8-9; only defense against is other aircraft, 9; classes of countries from an aeronautical standpoint, 10I I ; new method of conducting war at a distance brought about by, II ff. ; relations between, and armies and navies, 17 ff.; problem, of destruction of battleships by, 40; their domination of seacraft proved, 56 ff.; location of seacraft by, 64; navigation of, in storm, 69-""70; accomplishments by in 1922-1924, 76; in civil and commercial services, 77-¢; development of commercial types of, 87-9; civil uses of in time of peace, 98; difficulty in combating submarines with, 99; part they will take in future wars, 109; future invasions into heart of a country will be by, 126; subsidizing of in Europe, 149-""50; moral qualities required in fighting of, 163; chemical weapons used by, 165; the obtaining of aircraft and equipment, 181 ff.; general development of, 184 ff.; system in ordering, 193-5; defense against, 199 fl.; organization of, for defense, 206-7; policy of United States army and navy relating to, 239-42; increasing importance of, in warfare, 242-4 254 Index Air currents, study of, in connection with long distance routes, 89-90 Air defense of a locality, requirements of, 209 ff. Air force, how it may be forced to fight, 9-10; impossibility of rebuilding in war if once destroyed , 10; requirements for developillent of, 24-5; formation of, for attack on war ships, 58-60, 61; example of potentialities of, 75-6; in defensive warfare, 101; in offensive warfare, 102; the making of a personnel for, 159 ff., 220-1; three great branches of, 163 ff.; men and machines required by, in active service, 177 ff.; supply system of, 195-7; replacement by, of navy in coast defense, 2I 5 (, Air-going people," development of new spirit, language, and custOlllS by, 6 Air Mail Service, between New York and San Francisco, 36, 84; expansion of, demanded, 83; value of to business interests , 83-5; development of, 145-6, 230-2 Airmen, knowledge of country gained by, 6-8; have to "learn" themselves, 27 Air ministry of Great Britain, 21, 114; of Sweden, 116 Air parks, 197 Air pilots, training of, 171 ff. Airplanes, materials and trades concerned in production of, 25; landing of on airships, 39; gain speed by low flight, 55; speed of, 79, 87; effective speed of, in comparison to railroads, 85-6; landing of, on airship, 92-3; cost compared with that of battleships, I la-II; will reduce cost of coast fortifications, III; altitude of flight of, 139; motorless , or gliders, 156; automatic control of, 165; types to be produced, 182-4; all metal construction of, 186, 190; details of planning and construction of, 191 ff.; number of types of, 197-8; use of large propellers and muffling engines of, 203-4; efficiency of navigation of, 205 Airplane carriers, 125, 126 Air power, definition of, 3--4; mobility of, 16; probability that advent of, will reduce expense of navies, 18-19; recognition of value of by leading countries, 19 fl.; trend towards centralization in development of, 2 I ; elements of, 31-2; how it should be organized , 97 fl.; a major instrument of war, 102; eflect of, on modification and limitation of international armaments , 120 fl.; military and civil applications of, 122-3 ; change in application of armed forces caused by, 126; effect of, on army and navy plans, 134, 135; proper organization of air routes, 149; forcing of complete reorganization of national...

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