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NACA Technical Memorandums
52
United States Bureau of Mines Reports
31
NACA Technical Notes
29
NACA Technical Reports
23
NACA Aircraft Circulars
19
Bulletin (United States. Bureau of Mines)
6
Economic paper (Bureau of Mines)
3
Information circular (United States. Bureau of Mines)
3
Technical paper (United States. Bureau of Mines)
3
United States Geological Survey Reports
3
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163 Matching Results
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The A.B.C. "Robin" (British): A Single-Seat Cabin Monoplane
Report discussing the A.B.C. Motors Robin, a single-seat monoplane that was built for pilot comfort, speed, and fuel efficiency. Information about the structural design, dimensions, weight, performance, and rough blueprints is included.
Date:
September 1929
Creator:
A. B. C. Motors
System:
The UNT Digital Library
The A. B. Flygindustri "K 37" (Swedish Junkers): A Low-Wing All-Metal Military Airplane
Report discusses the characteristics of the K 37 all-metal long-wing monoplane and its use for long-distance scouting, as a day bomber, and as a heavy fighting airplane. Its engines, climbing capacity, action radius, bombing installation, fuselage, controls, and landing gear are explored in depth.
Date:
October 1929
Creator:
United States. National Advisory Committee for Aeronautics.
System:
The UNT Digital Library
Aerodynamic theory and tests of strut forms 2
This report presents the second of two studies under the same title. In this part five theoretical struts are developed from distributed sources and sinks and constructed for pressure and resistance tests in a wind tunnel. The surface pressures for symmetrical inviscid flow are computed for each strut from theory and compared with those found by experiment. The theoretical and experimental pressures are found to agree quantitatively near the bow, only qualitatively over the suction range, the experimental suctions being uniformly a little low, and not at all near the stern.
Date:
May 1929
Creator:
Smith, R. H.
System:
The UNT Digital Library
Aeromechanical Experimentation (Wind Tunnel Tests)
The following report endeavors to show that aeromechanical experimentation has become an important aid to theory. Experiments can be tried with separate parts of airplanes or with models of whole airplanes, with propellers, and with anything else that comes into contact with moving air.
Date:
April 1929
Creator:
Katzmayr, R.
System:
The UNT Digital Library
Airplane Drag
It has been less well understood that the induced drag (or, better said, the undesired increase in the induced drag as compared with the theoretical minimum calculated by Prandtl) plays a decisive role in the process of taking off and therefore in the requisite engine power. This paper seeks to clarify the induced drag.
Date:
December 1929
Creator:
Töpfer, Carl
System:
The UNT Digital Library
Albessard "Triavion" Airplane (French): A Two-Seat Tandem Monoplane
Autostability is the watchword of this tandem monoplane. The tandem design causes a natural flat flight pattern and it can also land and take off from very short runways. Details of the form, wings, ailerons, fuselage, characteristics, performances, drawings, and photographs are provided.
Date:
January 1929
Creator:
Serryer, J.
System:
The UNT Digital Library
The Amiot S.E.C.M. 110 C.1 : A Single-Seat Pursuit Monoplane
Circular presenting a description of the Amiot S.E.C.M. 110 C.1, which is a single-seat pursuit monoplane. Some of the design principles that the aircraft was built from are provided. A description of the design, components, dimensions, flight characteristics, and photographs are provided.
Date:
July 1929
Creator:
unknown
System:
The UNT Digital Library
The Analysis of Aircraft Structures as Space Frameworks: Method Based on the Forces in the Longitudinal Members
The following examples do not take up the discussion of viewpoints to be heeded in determining the design of a framework for given external conditions. Rather they are methods for determining the forces in airplane fuselages and wings, though similar considerations are applied to certain simple cases of a different kind. The object of this treatise is to summarize and amplify these considerations from definite viewpoints.
Date:
July 1929
Creator:
Wagner, Herbert
System:
The UNT Digital Library
Analysis of flight and wind-tunnel tests on Udet airplanes with reference to spinning characteristics
This report presents an analysis of results of wind-tunnel tests conducted at the D.V.L. Values were determined for the effectiveness of all the controls at various angles of attack. The autorotation was studied by subjecting the rotating model to an air blast.
Date:
March 1929
Creator:
Herrmann, H.
System:
The UNT Digital Library
Annual Report of the National Advisory Committee for Aeronautics (14th). Administrative Report Including Technical Reports Nos. 283 to 308
Report includes the National Advisory Committee for Aeronautics letter of submittal to the president, congressional report, summaries of the committee's activities and research accomplished, bibliographies, and financial report.
Date:
1929
Creator:
unknown
System:
The UNT Digital Library
Autogenous Welding in Airplane Construction
Autogenous welding is discussed and various methods of testing those welds are presented.
Date:
July 1929
Creator:
Kuchel, Ludwig
System:
The UNT Digital Library
The Balance of Moments and the Static Longitudinal Stability of Airplanes
A nomogram is developed which renders it possible by drawing a few lines, to determine: the location of the center of gravity for zero wing and tail moments; the longitudinal dihedral angle; the tail coefficient F(sub h) iota/F(sub t). Moreover there is no difficulty in determining the magnitude of the restoring moment or of the unstable moment.
Date:
December 1929
Creator:
Müller, Horst
System:
The UNT Digital Library
Bauxite: Float-and-Sink Fractionations and Flotation Experiments
From Introduction: "This report presents the results of an investigation of the physical properties and characteristics of bauxite, with special reference to the possibility of applying commercial methods of concentration to low-grade bauxite."
Date:
1929
Creator:
Gandrud, B. W. & De Vaney, Fred D.
System:
The UNT Digital Library
The Bernard 20 C.1 (French): A Single-Seat Pursuit Monoplane
Circular presenting a description of the Bernard 20 C.1, which is made of wood and has four main parts: a one-piece wing with a fuselage in the middle, a rear section with the tail surfaces, an engine mount, and a landing gear.
Date:
July 1929
Creator:
unknown
System:
The UNT Digital Library
Bibliography of Petroleum and Allied Substances, 1922 and 1923
From Introduction: "This bulletin is the seventh in this series of petroleum bibliographies published by the Bureau of Mines, Bulletins 149, 165, 180, 189, 216, and 220 being complications for the years 1915, 1916, 1917, 1918, 1919-20, and 1921, respectively. In this bulletin the same general plan of classification of references has been followed, but several additions have been made."
Date:
1929
Creator:
Britton, H.
System:
The UNT Digital Library
The Blackburn "Bluebird" Mark IV (British): All-Metal Biplane
Circular presenting a description of the Blackburn Bluebird Mark IV, which is an all-metal airplane. Details are provided regarding constructional features, the cockpit, the gasoline system, and the flight characteristics.
Date:
April 1929
Creator:
unknown
System:
The UNT Digital Library
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.
Date:
February 1929
Creator:
unknown
System:
The UNT Digital Library
The Bristol "Bulldog" (British): A Single-Seat All-Steel Fighter
Circular presenting a description of the Bristol Bulldog, which is a single-seat all-steel fighter aircraft powered by a Bristol Jupiter radial air-cooled engine. Details regarding the components, controls, stabilizers, design, flight characteristics, drawings, and photographs are provided.
Date:
October 1929
Creator:
unknown
System:
The UNT Digital Library
Buckling Tests of Light-Metal Tubes
Report presenting an attempt to determine mathematically the buckling-strength curves of various centrally loaded light-metal tubes which exhibit conspicuous differences of behavior under compressive loads. For this purpose, Von Karman's method is used after adapting it to special conditions.
Date:
August 1929
Creator:
Schroeder, August
System:
The UNT Digital Library
Calculation of the Pressures on Aircraft Engine Bearings
For aircraft engines the three principal operating conditions are idling speed, cruising speed, and diving with the engine stopped. In what follows, we will discuss a method which affords a good idea of the course of pressure for the above mentioned operating conditions. The pressures produced in the driving gear are of three kinds; namely, the pressure due to gases, the pressure due to the inertia of the rotating masses, and the pressure due to the inertia of the reciprocating masses.
Date:
December 1929
Creator:
Steigenberger, O.
System:
The UNT Digital Library
The Canadian Gypsum Industry
From introduction: The production of gypsum is one of the oldest industries in Canada, and in point of gypsum output Canada ranks third among the countries of the world. Gypsum was discovered in the Maritime Provinces at a very early date, but there is no authentic record..of production until about 1822, when gypsum was mined on a small scale in Ontario. Since.then the production has grown slowly but steadily to more than a million tons. In 1928 the output was 1,205,846 short tons, valued at $3,622,007.
Date:
August 1929
Creator:
Santmyers, R. M.
System:
The UNT Digital Library
Cantilever Wings for Modern Aircraft: Some Aspects of Cantilever Wing Construction with Special Reference to Weight and Torsional Stiffness
In the foregoing remarks I have made an attempt to touch on some of the structural problems met with in cantilever wings, and dealt rather fully with a certain type of single-spar construction. The experimental test wing was a first attempt to demonstrate the principles of this departure from orthodox methods. The result was a wing both torsionally stiff and of light weight - lighter than a corresponding biplane construction.
Date:
November 1929
Creator:
Stieger, H. J.
System:
The UNT Digital Library
Carburetion of Combustible Gas with Butane and Propane-Butane Mixtures with Particular Reference to the Carburetion of Water Gas
Report issued by the Bureau of Mines over the carburetion of many different fuels. The report pays particular attention to the carburetion of water gas. Carburetion methods and results are presented and discussed. This report includes tables, and illustrations.
Date:
1929
Creator:
Odell, William Wallace
System:
The UNT Digital Library
Coal-Mine Ventilation Factors
Report discussing results from investigations of coal mining ventilation and discussing problems of ventilation in coal mining.
Date:
1929
Creator:
Greenwald, H. P. & McElroy, G. E.
System:
The UNT Digital Library