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13,786 Matching Results
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"Villiers 24" Slotted-Wing Airplane (French): Night Pursuit Sesquiplane
The Villiers 24 C.A.N. 2 is a night pursuit sesquiplane equipped with the 450 HP direct-drive Lorraine 12 Eb engine. It is characterized by Handley Page slotted wings. Details of the construction, wings, flaps, controls, characteristics, performances, drawings, and photographs are provided.
Date:
November 1928
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Armstrong-Whitworth A.W. 15 "Atlanta" Airplane (British): A Commercial Multiplace Cantilever Monoplane
Circular describing the Armstrong Whitworth XV "Atalanta" airplane, which is a commercial multiplace cantilever monoplane. Details of the wings, landing gear, fuselage, control surfaces, structural design, wing, engine, characteristics, drawings, and photographs are provided.
Date:
August 1932
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The critical velocity of a body towed by a cable from an airplane
It is sufficient to consider only the equations of motion of the towed body whereas those of the cable may be left out of consideration. The result obtained makes it possible to determine which factors affect the critical velocity and what modifications of the instrument are necessary for extending the upper limit of that velocity.
Date:
July 1937
Creator:
Koning, C. & DeHaas, T. P.
Object Type:
Report
System:
The UNT Digital Library
The De Havilland "Moth Three" Airplane (British): A High-Wing Commercial Monoplane
Circular describing the De Havilland Moth Three, which is a high-wing commercial monoplane with a steeply sloping windshield, strut-bracing of the wing, and relatively orthodox landing gear. Details of the construction, design, characteristics, performance, drawings, and photographs are provided.
Date:
May 1930
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
A method for studying the hunting oscillations of and airplane with a simple type of automatic control
Report presenting a method for predicting the amplitude and frequency, under certain simplifying conditions, of the hunting oscillations of an automatically controlled aircraft with lag in the control system or in response of the aircraft to the controls. Formulas are given expressing the response to a variation of signal in terms of response to a unit signal.
Date:
May 1944
Creator:
Jones, Robert T.
Object Type:
Report
System:
The UNT Digital Library
Performance of B. M. W. 185-Horsepower Airplane Engine
"This report deals with the results of a test made upon a B. M. W. Engine in the altitude chamber of the Bureau of Standards, where controlled conditions of temperature and pressure can be made to simulate those of the desired altitude. A remarkably low value of fuel consumption - 041 per B. H. P. hour - is obtained at 1,200 revolutions per minute at an air density of 0.064 pound per cubic foot and a brake thermal efficiency of 33 per cent and an indicated efficiency of 37 per cent at the above speed and density. In spite of the fact that the carburetor adjustment does not permit the air-fuel ratio of maximum economy to be obtained at air densities lower than 0.064, the economy is superior to most engines tested thus far, even at a density lower than 0.064, the economies superior to most engines tested thus far, even at a density (0.03) corresponding to an altitude of 25,000 feet" (p. 1).
Date:
1922
Creator:
Sparrow, S. W.
Object Type:
Report
System:
The UNT Digital Library
The Shackleton-Murray SM-1 Light Airplane: A Two-Place High-Wing Monoplane
Circular presenting a description of the light airplane SM-1, which was designed by W. S. Shackleton and Lee Murray. Information regarding the design and flight characteristics and some photographs of the airplane are provided.
Date:
June 1933
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Comper "Mouse" Commercial Airplane (British): A Three-Seat Cabin Low-Wing Monoplane
Circular describing the Comper "Mouse" commercial airplane, which is a three-seat cabin low-wing monoplane. Details regarding the landing gear, wings, cabin, seating, fuselage, tail, power plant, controls, characteristics, performance, drawings, and photographs are provided.
Date:
October 1933
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Intercooler cooling-air weight flow and pressure drop for minimum drag loss
Report presenting an analysis of the power losses in airplane flight of cross-flow plate and tubular intercoolers to determine the cooling-air weight flow and pressure drop that give minimum total power loss for any given cooling effectiveness. The investigation covers a range of flight conditions of altitude, airspeed, lift-drag ratio, supercharger-pressure ratio, and adiabatic efficiency.
Date:
April 1944
Creator:
Reuter, J. George & Valerino, Michael F.
Object Type:
Report
System:
The UNT Digital Library
The "Avro Trainer" Airplane (British): A Training Biplane
Circular presenting a description of the Avro Trainer airplane, which is primarily intended for pilots in training and is designed to be easy to use, including large, comfortable cockpits, good view, effective windshields, and wide track. Details of the design, flight characteristics, drawings, and photographs are provided.
Date:
June 1930
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Albert TE-1 Training Airplane
The TE-1 is designed for the economical training of pilots and is a single seat parasol cantilever monoplane. It is nearly entirely made of wood, using a 40 HP. air-cooled Salmson A.D. 9 engine, and weighs 255 kg empty.
Date:
December 1926
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Investigations toward simplification of missile control systems
Paper presenting three ideas regarding potential simplifications of missile-control systems in order to make them more reliable without sacrificing system performance. The three methods presented include an autorotating-vane spoiler, a bellows flap, and free controls. All are based on modified airplane control systems.
Date:
November 12, 1953
Creator:
Curfman, Howard J., Jr.; Strass, H. Kurt & Crane, Harold L.
Object Type:
Report
System:
The UNT Digital Library
Correlation of exhaust-valve temperatures with engine operating conditions and valve design
Report presenting a theory regarding engine-cooling variables from a previous report, which was used as a basis for the development of a semi-empirical equation to correlate exhaust-valve temperature with engine conditions. Results regarding the determination of constants, influences of operating variables on mean effective gas temperatures, thermal-resistance factor, and accuracy of correlating equation are provided.
Date:
October 1945
Creator:
Zipkin, M. A. & Sanders, J. C.
Object Type:
Report
System:
The UNT Digital Library
Experiments on Drag of Revolving Disks, Cylinders and Streamline Rods at High Speeds
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 numbers. The tests generally confirm earlier theories and add in some new results. One of the primary findings of interest is that skin friction does not depend on Mach number.
Date:
June 1944
Creator:
Theodorsen, Theodore & Regier, Arthur
Object Type:
Report
System:
The UNT Digital Library
The effect of compressibility on two-dimensional tunnel-wall interference for a symmetrical airfoil
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 two-dimensional compressible flow past a thin Rankine Oval. It is shown that for a symmetrical section at zero angle of attack the velocity increment due to the tunnel walls in the incompressible case must be multiplied by the factor 1/1-M^2 to take account of compressibility effects. The Mach number, M, corresponds to conditions in the wind-tunnel test section with the model removed (p. 1.).
Date:
May 1943
Creator:
Nitzberg, Gerald E.
Object Type:
Report
System:
The UNT Digital Library
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 with a capacity of 255 liters. It is a single engine biplane with wings mounted above the body of the seaplane.
Date:
April 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
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 are provided.
Date:
August 1932
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Hanriot-Biche 110 C1 Airplane (French): An All-Metal Low-Wing Pursuit Monoplane
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, power plant, landing gear, flying qualities, and photographs are provided.
Date:
July 1933
Creator:
Rabion, René
Object Type:
Report
System:
The UNT Digital Library
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.
Date:
November 1931
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Dyle and Bacalan "D.B. 80" Day Mail Airplane (French): An All-Metal High-Wing Monoplane
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 provided.
Date:
August 1930
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
A method for determining the rate of heat transfer from a wing or streamline body
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 indicates that the accuracy of the method is good. This method may be used to calculate the heat supply necessary for heat de-icing or in ascertaining the heat loss from the fuselage of an aircraft operating at great altitude, for example."
Date:
December 1942
Creator:
Frick, Charles W., Jr. & McCullough, George B.
Object Type:
Report
System:
The UNT Digital Library
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 wing tips to increase the span as temporary means for increasing the range of a fighter-type airplane. Figures and charts for the various devices considered show the results of calculations of range, duration of flight, and take-off distance for both land-base and carrier operation. The results indicated that the wing-tip extensions were the most promising of the devices considered" (p. 1).
Date:
May 1943
Creator:
Jones, Robert T. & Wetmore, Joseph W.
Object Type:
Report
System:
The UNT Digital Library
Vickers "Viastra I" Commercial Airplane (British): A High-Wing All-Metal Semicantilever Monoplane
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, characteristics, drawings, and photographs are provided.
Date:
November 1930
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
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, generally, characterized by the use of an annular inlet and diffuser section for the engine-cooling air. An increase in maximum speed was noted in the XP-42 airplane due to the change from a C cowling to a D cowling.
Date:
April 1943
Creator:
Johnston, J. Ford
Object Type:
Report
System:
The UNT Digital Library