Clik here to view.
Fairey "Battle" Medium Bomber Airplane (British): An All-Metal Low-Wing...
Circular presenting a description of the Fairey "Battle", which is the first stressed-skin aircraft they have constructed and is also an all-metal low-wing cantilever monoplane. Details of the...
View ArticleClik here to view.
On a New Method for Calculating the Potential Flow Past a Body of Revolution
Report presenting a new method for obtaining the velocity potential of the flow about a solid of revolution moving uniformly in the direction of its axis of symmetry in a fluid otherwise at rest. The...
View ArticleClik here to view.
The Short "Calcutta": First British All-Metal Commercial Seaplane
The Calcutta is a large seaplane, with seating for 16 and a payload of 3,400 pounds. A description of the design, construction features, engine installation, specifications, performance, and...
View ArticleClik here to view.
Profile-Drag Coefficients of Conventional and Low-Drag Airfoils as Obtained...
"The results of flight investigations of the profile drag of several carefully finished conventional and low-drag airfoils are presented. The results indicated that in all cases lower profile-drag...
View ArticleClik here to view.
NACA Mach number indicator for use in high-speed tunnels
Report presenting a description of a device for indicating stream Mach number in a high-speed tunnel. It consists of a mechanism for determining the pressure ratio that Mach number is a function of....
View ArticleClik here to view.
Westland "Wessex" Commercial Airplane (British): A High-Wing Semicantilever...
Circular presenting a description of the Westland Wessex, which differs from other airplanes of its class because of the mounting of the outboard engines on outriggers from the fuselage and the placing...
View ArticleClik here to view.
The A.N.E.C. IV "Missel Thrush" light airplane
A product of the Air Navigation Engineering Co., the Missel Thrush is a light airplane suitable for private ownership. It is a two seat tractor fuselage biplane with single I interplane struts designed...
View ArticleClik here to view.
The D.H. 85 "Leopard Moth" Airplane (British): A Three-Seat Cabin High-Wing...
Circular describing the De Havilland "Leopard Moth", which is a three-seat cabin high-wing monoplane with a good cruising speed and fuel efficiency. Details of the components, controls,...
View ArticleClik here to view.
The Boundary Layer as a Means of Controlling the Flow of Liquids and Gases
According to one of the main propositions of the boundary layer theory the scarcely noticeable boundary layer may, under certain conditions, have a decisive influence on the form of the external flow...
View ArticleClik here to view.
Critical combinations of shear and transverse direct stress for an infinitely...
Report presenting an exact solution and a closely concurring approximate energy solution for the buckling of an infinitely long flat plate under combined shear and transverse direct stress with edges...
View ArticleClik here to view.
Tests of a Thermal Ice-Prevention System for a Wing Leading-Edge...
Report discussing the creation of a thermal ice-prevention system of a bomber-type airplane to provide protection against ice and fog formations on the transparent fairing over the landing light in the...
View ArticleClik here to view.
The Dewoitine D.30 Commercial Airplane (French): A High-Wing Cantilever...
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,...
View ArticleClik here to view.
Comparison of the performance of a helicopter-type ram-jet engine under...
Report presenting an investigation of an 18-foot-radius helicopter rotor powered by tip-mounted ramjet engines in the helicopter test tower. The engine performance is compared with the performance...
View ArticleClik here to view.
Wibault Two-Seat Monoplane 8C2: An All-Metal Pursuit and Observation Airplane
Michel Wibault's two seat monoplane 8C2, is similar to the Parasol pursuit monoplane which preceded it. It has no perishable parts in its structure and needs no special storage or coverings. The sample...
View ArticleClik here to view.
Visual Studies of Cylinder Lubrication [Part] 1: The Lubrication of the...
Report describes the lubrication characteristics of an aircraft-type piston as visually studied in a V-type engine with a glass cylinder. Information about the movement of the piston, the piston rings,...
View ArticleClik here to view.
Fiat C.R. 20 Pursuit Airplane
The Fiat C.R. 20 has an all metal frame covered with fireproof fabric, except for the area near the engines, which is covered in duraluminum. It is armed with 4 machine guns and is capable of 280 KPH.
View ArticleClik here to view.
On the plane potential flow past a symmetrical lattice of arbitrary airfoils
Report presenting a theoretical investigation of the two-dimensional, incompressible potential flow past a symmetrical lattice of airfoils of arbitrary shape. Expressions are given for evaluation of...
View ArticleClik here to view.
Caproni Airplane Ca 73 (Commercial) and Ca 73 ter (Military)
The Caproni 73 is a biplane with medium thick wings, a rigid central section, and with each lateral extension forming a single cell and is powered by two 500 Isotta Fraschini "Asso" Engines.
View ArticleClik here to view.
Ultraviolet spectrochemical analysis for aromatics in aircraft fuels
Report presenting tests to verify and extend ultraviolet spectroscopic techniques for applications to the analysis of aviation fuels for their aromatic constituents. Results regarding photographic...
View ArticleClik here to view.
An approximate spin design criterion for monoplanes
"A quantitative criterion of merit has been needed to assist airplane designers to incorporate satisfactory spinning characteristics into new designs. An approximate empirical criterion, based on the...
View ArticleClik here to view.
Flight Tests of Modifications to Improve the Aileron Control Characteristics...
Investigations were undertaken to improve the ailerons of a P-51 fighter so as to obtain greater effectiveness without increasing the stick forces. Modifications consisted of increasing the deflection...
View ArticleClik here to view.
The Latécoère 501 Commercial Seaplane (French): A Three-Engine Metal Sesquiplane
Circular presenting a description of the Latécoère 501. A more detailed description of the general characteristics, power plant, wings, planing fins, hull, tail surfaces, and flying characteristics are...
View ArticleClik here to view.
The C.A.M.S. 60 Seaplane (French): A Twin-Engine Bombing and Torpedo Monoplane
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,...
View ArticleClik here to view.
Supplies and Production of Aircraft Woods
The purpose of this report is to present in brief form such information as is available regarding the supplies of the kinds of wood that have been used or seem likely to become important in the...
View ArticleClik here to view.
Travel Air Commercial Airplane - Type 5000
The 5000 is a semicantilever monoplane, closed cabin type, with pilot about in line with the leading edge of the wing and room for 4 passengers behind him. It is equipped with a Wright Whirlwind...
View ArticleClik here to view.
Flight tests of thermal ice-prevention equipment in the XB-24F airplane
Report presenting performance tests of thermal ice-prevention equipment designed and installed in the XB-24F airplane in icing and non-icing conditions. The recorded temperature and air-flow data, and...
View ArticleClik here to view.
The Boeing Mail Airplane
The Boeing Mail Airplane is a biplane with cloth covered wings of wood and wire construction, a top speed of 130 MPH, and a fuel capacity of 100 gallons in two tanks.
View ArticleClik here to view.
The "Comte A.C. 3" Military Airplane (Swiss) : A High-Wing Semicantilever...
Circular presenting a description of the Comte A.C. 3, which is a high-wing monoplane with tow tandem 600 hp Hispano-Suiza engines mounted above the fuselage. Details of the design, fuel tanks,...
View ArticleClik here to view.
Vojenska-Smolik S.16 Airplane: All-Metal Long-Distance Observation Bi-Plane
Circular presenting a description of the Vojenska-Smolik all-metal two-seater airplane. The design and flight characteristics are described and blueprints and photographs of the aircraft are provided.
View ArticleClik here to view.
The Airspeed "Oxford" Training Airplane (British): A Two-Engine Cantilever...
Circular describing the Airspeed A.S. 10 "Oxford", which is a twin-engine trainer with a variety of equipment, including propellers, landing gear, and other components.Details of the wings, fuselage,...
View ArticleClik here to view.
The Fokker "Trimotor F VII" Commercial Transport Monoplane
Directly developed from the single engined type F VII ten passenger monoplanes, the Fokker Trimotor closely follows the commercial aircraft that preceded it. It has three Wright Whirlwind air-cooled...
View ArticleClik here to view.
Breguet Military Airplane, Type 33: A Two-Place Long-Distance Sesquiplane for...
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,...
View ArticleClik here to view.
Richard-Penhoet Commercial Seaplane
This is a multi-engine monoplane with a central hull and without external bracing. The trim of the seaplane on the water is assured by two wing floats, one on each side of the hull 9 m. from its axis....
View ArticleClik here to view.
Fluid de-icing tests on a Chandler-Evans 1900 CPB-3 carburetor mounted on a...
Report presenting an investigation of the icing and de-icing characteristics of a Pratt & Whitney R-1830 engine induction system. The current report covers a program to determine the most effective...
View ArticleClik here to view.
The Transformation of Heat in an Engine
This report presents a thermodynamic basis for rating heat engines. The production of work by a heat engine rests on the operation of supplying heat, under favorable conditions, to a working fluid and...
View ArticleClik here to view.
The Henderson "Hendy" 302 Cabin Airplane (British): A Two-Seat Low-Wing...
Circular presenting a description of the Hendy 302, which is a two-seat, low-wing cantilever monoplane with a hinged cabin top. A description of the design, flying qualities, and photographs are provided.
View ArticleClik here to view.
Stability of the Parachute and Helicopter
This report deals with an extension of the theory of stability in oscillation to the case of aircraft following a vertical trajectory, and particularly to the oscillations of parachutes.
View ArticleClik here to view.
Fuel-Evaporation Loss as Determined by the Change in the Specific Gravity of...
Report discusses the results of an investigation to determine the feasibility of using the change in the specific gravity of fuels in aircraft fuel tanks to measure fuel-vaporization loss. Six fuels...
View ArticleClik here to view.
Morane-Saulnier 121 Single-Seat Pursuit Airplane (French)
The M.-S. 121 is noted for it's excellent visibility inherent in the parasol design. The wings have no dihedral but a very pronounced sweep back. A description of the components, flight...
View ArticleClik here to view.
Review of Flight Tests of NACA C and D Cowlings on the XP-42 Airplane
Report presenting the results of flight tests of the performance and cooling characteristics of three NACA D cowlings and of a conventional NACA C cowling on the XP-42 airplane. The D cowling is,...
View ArticleClik here to view.
Vickers "Viastra I" Commercial Airplane (British): A High-Wing All-Metal...
Circular describing the Vickers Viastra I, which is a commercial high-wing all-metal semicantilever monoplane. Details of the structure, fuselage, wings, fuel tanks, landing gear, tail, cabin, cockpit,...
View ArticleClik here to view.
Emergency Measures for Increasing the Range of Fighter Airplanes
"An analysis was made to show the relative effectiveness of streamline external fuel tanks, a fuel tank in the form of a wing mounted in a biplane position, and auxiliary wing panels attached at the...
View ArticleClik here to view.
A method for determining the rate of heat transfer from a wing or streamline...
From Summary: "A method for calculating the rate of heat transfer from the surface of an airfoil or streamline body is presented. A comparison with the results of an experimental investigation...
View ArticleClik here to view.
The Dyle and Bacalan "D.B. 80" Day Mail Airplane (French): An All-Metal...
Report presenting a description of the Dyle and Bacalan D.B. 80 airplane, which can be used for delivering mail. Details of the wing, fuselage, tail, landing gear, fuel tanks, and flying qualities are...
View ArticleClik here to view.
The Guilleman J.G. 10 (French) : A Two-Place Touring Low-Wing Monoplane
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.
View ArticleClik here to view.
The Hanriot-Biche 110 C1 Airplane (French): An All-Metal Low-Wing Pursuit...
Circular presenting a description of the Hanriot-Biche 110 C1 airplane, which is a French all-metal low-wing pursuit monoplane. Details regarding the wing, girders and tail surfaces, pilot's cockpit,...
View ArticleClik here to view.
The Bleriot 137 Military Airplane (French): A Twin-Engine Multiplace Monoplane
Circular presenting a description of the Blériot 137, which is a metal modification of the Bléirot 127. A description of the crew, the equipment, firing tests of the guns, and flight characteristics...
View ArticleClik here to view.
Lioré-Olivier LeO 194 Seaplane
Report presenting a description of the Lioré-Olivier LeO 194 seaplane and a particular series of flights made over several months. Its fuselage is made entirely of wood. It has 6 gasoline tanks each...
View ArticleClik here to view.
The effect of compressibility on two-dimensional tunnel-wall interference for...
Summary: The effective change in the velocity of flow past a wing section, caused by the presence of wind-tunnel walls, is known for potential flow. This theory is extended by investigation of the...
View ArticleClik here to view.
Experiments on Drag of Revolving Disks, Cylinders and Streamline Rods at High...
Report presenting an experimental investigation concerned primarily with the extension of test data on the drag of revolving disks, cylinders, and streamline rods to high Mach numbers and Reynolds...
View Article
