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Pressure drop in tank and float vent tubes on diving airplanes
Report presenting an experiment regarding tank and float venting conditions that exist on diving airplanes undergoing rapid changes in altitude. The results indicated that large pressure differences...
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"Levasseur 8" Transatlantic Airplane
Circular describing the Levasseur 8, which is an adaptation of a naval airplane adopted by the French Navy. Details of the wings, fuselage, landing gear, fuel, engine, and flying qualities are provided.
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The Short "Scylla" Commercial Airplane (British): An All-Metal Biplane
Circular presenting a description of the Short Scylla, which is a 39-passenger landplane with four Bristol Jupiter XF BM engines. A description of the characteristics, blueprints, and photographs of...
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Meteore 63 Commercial Seaplane
Societe Provencale de Constructions Aeronautiques, builder of the "Meteore 63" has constructed a three engine (biplane) seaplane which has met conditions for a seaworthy certificate of the first class....
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The Propeller and Cooling-Air-Flow Characteristics of a Twin-Engine Airplane...
Report presenting an investigation in the 19-foot pressure tunnel to determine the nacelle drag, the cowling-air flow, and the propeller characteristics of a model of a high-performance military...
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Latécoère 38-0 Flying Boat (French): A Long-Range Sesquiplane for Carrying Mail
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.
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An Investigation of a Thermal Ice-Prevention System for a C-46 Cargo Airplane...
Report presenting an investigation of an exhaust-air heat exchanger, which has been designed, constructed, and flight-tested for a C-46 cargo airplane. The primary purpose of the investigation was to...
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The Comper C(La)7 "Swift" Airplane (English): A High-Wing Single-Seat Monoplane
Circular describing the Comper C(La)7 Swift airplane, which is a high-wing single-seat monoplane with performance equal to that of a modern two-seat light airplane. Details of the view, aerodynamic...
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Farman Two-Engine Commercial Biplane F.180 (French)
The F180 was designed for reliable long distance travel in stages of 500, 1000, 1500 km, carrying loads of 2500, 2000, and 1500 kg respectively. At maximum load it can carry 20 passengers.
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A Low-Speed Experimental Investigation of the Effect of a Sandpaper Type of...
Report describing the effects of an area of roughness on the velocity and turbulence measurements of an airfoil. It details the effects of the size, location, and height of the roughness on the...
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Further Measurements of Normal Accelerations on Racing Airplanes
This report details the acceleration data collected from racing airplanes during actual races. The data was collected in order to make recommendations regarding the structural safety of racing...
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The Avro 631 Training Airplane (British): A Two-Seat Light Biplane
Circular describing the Avro 631 training airplane, which is a British two-seat light biplane that is meant to be affordable and small. Details regarding the wings, fuselage, tail unit, landing gear,...
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The Avia 51 Commercial Airplane (Czechoslovakian): A Cantilever High-Wing...
Circular describing the Avia 51 commercial airplane, which is a Czechoslovakian cantilever high-wing monoplane with a fairly orthodox design. Details of the performance, construction, wing, ailerons,...
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Compressible potential flow with circulation about a circular cylinder
Report presenting the potential function for flow, with circulation, of a compressible fluid about a circular cylinder, which is obtained in series form including terms of the order of M(exp 4) where M...
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The Caproni Monoplanes "Ca 97" (Italian)
The Ca 97 is constructed with wings half overhung, a large fuselage, all metal construction, and can be configured with 1 to 3 engines.
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The Boulton and Paul P.64 Mail-Carrier: A Two-Engine All-Metal Biplane
Circular presenting a description of the Boulton and Paul P.64 high-performance mail-carrier. It is a two-engine tractor biplane that has been designed to give the specified normal speed with each...
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The Gloster "Gambet" Airplane: A Deck-Landing Ship's Fighter Fitted With a...
Circular detailing the Glouster "Gambet", which is a new single-seat fighter for use from aircraft carriers. A description of the design, components, characteristics, photographs, and drawings are...
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The Boulton and Paul "Partridge" (British): All-Metal Single-Seat Fighter
The Partridge is a tractor biplane of orthodox design. It has a single supercharged Jupiter VII engine.
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The Avro "Gosport," 504 R: A New Training Airplane
Circular describing the Avro Gosport 504 R, which is a new training airplane that is lighter than other Avro training airplanes but is strong enough to withstand rough handling that may be encountered...
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The Kiln Drying of Wood for Airplanes
This report is descriptive of various methods used in the kiln drying of woods for airplanes and gives the results of physical tests on different types of woods after being dried by the various...
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The Flow of a Compressible Fluid Past a Circular Arc Profile
Report presenting the use of the Ackeret iteration process to obtain higher approximations than that of Prandtl and Glauert for the flow of a compressible fluid past a circular arc profile. The...
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The Effects of a Small Jet of Air Exhausting From the Nose of a Body of...
Report presenting the results of an investigation to determine the effects of a small jet of air exhausting from the nose of an elliptical body of revolution upon boundary-layer transition and the...
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The Westland Iv Commercial Monoplane (British): Three "Cirrus III" Engine
Circular presenting a description of the Westland IV, which is a high-wing monoplane with strut bracing, two outboard engines, a fairly large fuselage that provides comfortable cabin accommodation, and...
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The Dewoitine D.332 Commercial Airplane (French): A Three-Engine All-Metal...
Circular describing the Dewoitine D.332, which is a commercial three-engine all-metal low-wing monoplane form France. Details of the construction history, wing, fuselage, power plant, landing gear,...
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The Armstrong Whitworth "Starling" (British) (Single Seat Fighter)
Circular describing the Armstrong-Whitworth "Starling", which is a single seat fighter that can be used for day fighting and night fighting. Details of the wings, wing bracing, lift characteristics,...
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The Short "Empire" Commercial Flying Boat (British): An All-Metal Cantilever...
Circular presenting a description of the Short "Empire" flying boat, which is an all-metal, four-engine, cantilever monoplane with a two-step hull.
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A study of the use of various high-lift devices on the horizontal tail of a...
Report presenting an investigation to study the use of various high-lift devices on the horizontal tail of a canard airplane model as a means of increasing the allowable center-of-gravity travel. The...
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Thermodynamic Design of Double-Panel, Air-Heated Windshields for Ice Prevention
Report details the development of design equations for double-panel, air-heated windshields with ice prevention properties. The application of the equations and suggestions for experimental flight...
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The Saunders "Cutty Sark" Commercial Seaplane (British): A High-Wing...
Circular describing the Saunders Cutty Sark commercial seaplane, which is a high-wing monoplane flying boat. Details regarding the power unit, engines, fuel system, components, characteristics,...
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The Farman "F.300" Commercial Airplane (French): A High-Wing Semicantilever...
Circular describing the Farman F.300 airplane, which is a high-wing semicantilever monoplane. Details of the wings, engine, equipment, safety, characteristics, performance, drawings, and photographs...
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Breguet 390 T Commercial Airplane (French): A Ten-Seat All-Steel Sesquiplane
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...
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The Bleriot 110 Airplane (French): A Long-Distance High-Wing Monoplane
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...
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Nieuport-Delage 590 Military Airplane (French): A Two-Place High-Wing...
Circular presenting a description of the Nieuport-Delage 590 three-engine colonial cantilever monoplane, which meets the requirements of the program established by the French Government. Information is...
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Performance of an exhaust-gas "blowdown" turbine on a nine-cylinder radial...
Report presenting tests on an exhaust-gas turbine with four separate nozzle boxes each covering a 90 degree arc of the nozzle diaphragm and each connected to a pair of adjacent cylinders in a Pratt...
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Baynes Bee Light Airplane (British): A Two-Seat High-Wing Monoplane
Circular presenting a description of the Baynes Bee, which is a light two-seat high-wing monoplane. Details of its unique qualities, design, components, flying qualities, drawings, and photographs are...
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An Investigation of Aircraft Heaters 9: Measured and Predicted Performance of...
Report presenting laboratory testing to determine the thermal output and pressure drop characteristics of the Airesearch and Solar fluted-type exhaust gas-air heat exchangers. The apparatus used in...
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The Short "Valetta" Commercial Seaplane (British): A High-Wing All-Metal...
Circular presenting the Valetta, which is a twin-float seaplane and flying boat with a power plant comprised of three Bristol "Jupiter" XI F geared engines. A description of the design,...
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A pressure-distribution investigation of a fineness-ratio-12.2 parabolic body...
Report presenting a pressure-distribution investigation of a parabolic body of revolution with a fineness ratio of 12.2, which was performed in the 4- by 4-foot supersonic tunnel at Mach number 1.59...
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An Investigation of a Thermal Ice-Prevention System for a C-46 Cargo Airplane...
Report presenting flight tests to establish the dry-air-performance characteristics of a thermal ice-prevention system at various operating conditions and altitudes. Results regarding twin-engine tests...
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The Hanriot H 431 Military Airplane (French): A General Purpose Biplane
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...
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A general representation for axial-flow fans and turbines
From Summary: "A general representation of fan and turbine arrangements on a single classification chart is presented which is made possible by a particular definition of the stage of an axial-flow fan...
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Avia Pursuit Airplane B.H. 21
Built by the 'Czecho-Slovakian' aircraft factory, AVIA, the B.H. 21, has a top speed of 250 MPH, and carries 120 kg of gasoline and 20 kg of oil, giving it a radius of action of 600-650 km. It is...
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The D.H. "Fox Moth" Commercial Airplane (British): A Three-Passenger Light...
Circular describing the D.H. 83 "Fox Moth", which is a three-passenger light cabin biplane that is considered a commercial airplane despite taking many of its components from the company's existing...
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The Use of Geared Spring Tabs for Elevator Control
Report discussing the use of two types of geared spring tabs for elevator control: ordinary (or ungeared) spring tabs and geared spring tabs. Their use in airplanes of various sizes and in comparison...
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Flight Studies of the Horizontal-Tail Loads Experienced by a Fighter Airplane...
Report presenting flight measurements made on a modern pursuit airplane to determine the approximate magnitude of the horizontal tail loads in accelerated flight. Pressures at a few points were used as...
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Analysis of Heat and Compressibility Effects in Internal Flow Systems and...
Report presenting an analysis of the effects of heat and compressibility in the flow through the internal systems of aircraft. Equations and charts are developed whereby the flow characteristics at key...
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Determination of General Relations for the Behavior of Turbulent Boundary Layers
Report presenting an analysis of data for turbulent boundary layers along wings and bodies of various shapes in order to determine the fundamental variables that control the development of turbulent...
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The Unsteady Lift of a Finite Wing
Note discussing the lift of a finite wing including the calculations and constants for each step of the lift. This information is compared against the lift of an infinite wing. From Summary: "Unsteady...
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The S.P.C.A. 40 T Commercial Airplane (French): An All-Metal Cantilever...
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,...
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An Investigation of a Thermal Ice-Prevention System for a C-46 Cargo Airplane...
Report presenting an investigation of a thermal ice-prevention system for a C-46 cargo airplane, which involved flight tests in dry-air and natural-icing conditions at two different laboratories. The...
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