Circular presenting a description of the Wibault 280 T.10, which is an all-metal cantilever low-wing monoplane. The flight characteristics, design, blueprints, and photographs are provided.

Circular presenting a description of the Bernard 120, which is a seaplane. Descriptions of the structural elements, engine, and fuel distribution system are provided.

Circular presenting the Amiot 140 M, which is the first of a series of airplanes that have been developed by a French aircraft manufacturer. A description of the design, dimensions, flight characteristics, blueprints, and photographs are provided.

Circular describing the Avro 627 Hailplane, which is a single-seat biplane designed for delivering air mail. Details regarding the fuselage, wings, tail, landing gear, power installation, characteristics, performance, drawings, and photographs are provided.

Circular presenting a description of the Bernard 80 aircraft. Details are provided on the body shape, wings, ribs, fuel requirements, and flight characteristics.

Circular presenting a description of the Bleriot 110 which is a long-distance airplane mainly distinguished by its fineness and lightness. Details of the fuselage, shape, wing, and power plant are provided.

Circular presenting a description of the Breguet 390 T, which is a three-engine all-metal transport sesquiplane with the same structural principles as the Breguet military airplane. This aircraft design replaces a girder fuselage with an orthodox rectangular fuselage with accommodations for ten passengers and baggage. Details of the design, components, flying qualities, drawings, and photographs are provided.

Circular presenting a description of the Breguet military airplane, Type 33, which is a two-place long-distance sesquiplane made for observation and bombing. Details of the components, bomb dropping, flying qualities, design, flying qualities and performances, drawings, and photographs are provided.

Circular presenting a description of the C.A.M.S. 60, which is a twin-engine monoplane with a medium-thickness wing and two floats. Details of the wings, engines, fuselages, floor, rear cabin, floats, and flying qualities are provided.

Circular describing the Dewoitine D.30, which is a commercial high-wing cantilever monoplane. Details of the wing, fuselage, tail surfaces, landing gear, flight controls, electrical equipment, sending-receiving wireless installation, power plant, characteristics, performance, drawings, and photographs are provided.

Circular describing the Dewoitine D 33 commercial airplane, which is a low-wing cantilever monoplane. Details of the wing, fuel tanks, fuselage, landing gear, controls, engine, characteristics, drawings, and photographs are provided.

Circular presenting a description of the Focke-Wulf F 19a "Ente" aircraft, which includes the unique design feature of the horizontal control surfaces being placed at the forward end of the fuselage while the wing is farther aft. Details of the design, aerodynamic characteristics, wings, controls, landing gear, power plant, fuel tanks, characteristics, drawings, and photographs are provided.

Circular describing the Guillemin J.G. 10, which is a two-place touring low-wing monoplane. Details of the wing, fuselage, engine, characteristics, drawings, and photographs are provided.

Circular presenting a description of the Hanriot H 431, which was designed to meet the requirements of the French War Ministry for general purpose airplanes. Details are provided for the design, flying qualities, and improvements over other aircraft designs.

Circular presenting a description of the I.A.R. pursuit airplane. Details of the design, ailerons, fuselage, fuel tanks, landing gear, and flying qualities are provided.

Report describing the Latécoère 38-0, which is a transatlantic mail seaplane. A description of the design, flight characteristics, and some of its special features is provided.

Circular describing the Mauboussin M 11 touring airplane, which is a two-place high-wing monoplane that is an enlargement of the M 10. Details of the wing, ailerons, fuselage, cockpit, fuel tanks, landing gear, tail, characteristics, performances, drawings, and photographs are provided.

Circular presenting a description of the Mono-Spar light airplane, which is a small twin-engined low-wing cabin monoplane. A description of the design, structural features, characteristics, flying qualities, photographs, and drawings are provided.

Circular describing the Ateliers des Mureaux 111 R.2 military airplane, which is a long-distance all-metal observation monoplane. A description of the design and construction, characteristics, flying qualities, drawings, and photographs are provided.

Circular describing the Polish P.I and P.VIII airplanes, which are both all-metal gull-type wing monoplanes that differ in the type of engine used, their wing area, and their landing gears. Details of the components, design, differences, characteristics, load distribution, performance, drawings, and photographs are provided.

Circular presenting a description of the Potez 37R2 military airplane, which is a two-place long-distance observation monoplane. Details of the design, construction, components, characteristics, drawings, and photographs are provided.

Circular describing the S.P.C.A. 40 T, which is a commercial all-metal cantilever airplane that was guided by the two essential requirements of economy and safety in its design. Details of the design, power, test results, fuel tanks, characteristics, performances, drawings, and photographs are provided.

Circular presenting a description of the Supermarine S.6.B. racing seaplane, which was the winner of a seaplane contest. Information regarding the oil system, water system, fuel system, floats, and controls are provided.