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Airplanes, Zeppelin-Staaken, German 650 Airport, London, British 893 Air Service Engineering Division, U.S. 484 - 577 - 657 672 - 732 - 899 Purchases for 909 Airships, comment on, Italian 541 Comparison of, German 631 Compartments in, German 594 -598 Landing on, British 736 Property of whom, German 599 - 603 Semi-rigid, Italian 540 Zeppelin, German 591 - 614 Air Station, Isle of Grain, England 720 Aladdin heat retailing jar, British 818 Alcoholic fuels, British 724 Aldis sights, French 457 All-metal airplanes, Bolton and Paul, British 822 British 711 French 315 Short Brothers, British 623 Construction, French 324 Zeppelin Dornier Company, German 639 Propellers, British 732 Allotment of numbers to drawings, Wibault system, French 420 Allowance, ammunition, British 735 Alloys, magnesium, German 589 Steel 905 British 712 Alloy steel tubing 904 Alternation of airplanes, ease of, Fokker, Dutch 672 Altimeter, French 362 Altitude airplanes, Spad, French 423 High, airplanes, French 332 Alula wing, British 707 - 738 Conclusions, British 738 Descriptions of, British 738 Wind tunnel results of, British 738 Ambulance airplanes 899 Breguet, French 451 - 453