Resource Type
Partner
Collection
Technical Report Archive and Image Library
212
National Advisory Committee for Aeronautics Collection
158
American Indians Archive Collection
1
Boy and Girl Scout Annual Reports
1
Harris and Eliza Kempner
1
Oklahoma Historical Society Manuscript Collection
1
Stillwater History Museum at the Sheerar, Stillwater, Oklahoma
1
Serial/Series Title
NACA Technical Memorandums
53
NACA Technical Notes
44
United States Bureau of Mines Reports
35
NACA Technical Reports
34
NACA Aircraft Circulars
23
Report of investigations (United States. Bureau of Mines)
11
United States Geological Survey Reports
11
Coal-Mine Fatalities
8
U.S. Geological Survey professional paper
8
Shorter contributions to general geology
6
22 More
States
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216
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The 7 by 10 Foot Wind Tunnel of the National Advisory Committee for Aeronautics
This report presents a description of the 7 by 10 foot wind tunnel and associated apparatus of the National Advisory Committee for Aeronautics. Included also are calibration test results and characteristic test data of both static force tests and autorotation tests made in the tunnel.
Date:
October 22, 1931
Creator:
Harris, Thomas A.
System:
The UNT Digital Library
Accident Experience and Cost of Accidents in Washington Coal Mines
Report containing tables detailing cost of mining accidents in Washington state in comparison with other states.
Date:
November 1931
Creator:
Ash, S. H.
System:
The UNT Digital Library
Advantages of Oxide Films as Bases for Aluminum Pigmented Surface Coatings for Aluminum Alloys
Report discussing both laboratory and weather-exposure corrosion tests showed conclusively that the protection afforded by aluminum pigmented spar varnish coatings applied to previously anodized aluminum surfaces was greatly superior to that afforded by the same coatings applied to surfaces which had simply been cleaned free from grease and not anodized.
Date:
November 1931
Creator:
Buzzard, R. W. & Mutchler, W. H.
System:
The UNT Digital Library
The aerodynamic characteristics of six commonly used Airfoils over a large range of positive and negative angles of attack
From Summary: "This paper presents the results of tests of six commonly used airfoils: the CYH, the N-22, the C-72, the Boeing 106, and the Gottingen 398. The lifts, drags, and pitching moments of the airfoils were measured through a large range of positive and negative angles of attack. The tests were made in the variable density wind tunnel of the National Advisory Committee for Aeronautics at a large Boeing 106, and the Gottingen 398 airfoils, the negative maximum lift coefficients were found to be approximately half the positive; but for the M-6 and the CYH, which have less effective values were, respectively, 0.8 and 0.6 of the positive values."
Date:
November 1931
Creator:
Anderson, Raymond F.
System:
The UNT Digital Library
The aerodynamic characteristics of three tapered airfoils tested in the variable density wind tunnel
From Summary: "This report contains the lift, drag, and moment characteristics of tapered Clark Y, Gottingen 393, and USA 45 airfoils as obtained from tests made in the Variable Density Wind Tunnel of the NACA. The results are given at both low and high Reynolds Numbers to show scale effect and to provide data for use in airplane design."
Date:
February 1931
Creator:
Anderson, Raymond F.
System:
The UNT Digital Library
The Aerodynamic Wind Vane and the Inherent Stability of Airplanes
Report discussing the design of the wind vane described rests on the following line of reasoning: An airplane, originally in equilibrium about its C.G. is assumed to be deflected from this position through an angle (delta)i, the variation (delta)i being so sudden that the path of the C.G. and the airplane speed do not change while it is taking place. The aerodynamic forces acting on the wings, tail surfaces, fuselage, etc., which, as a whole, exerted a zero moment (M(sub G) = 0) about the center of gravity at the instant of equilibrium, now exert a moment M(sub G) not equal to 0.
Date:
February 1931
Creator:
Lapresle, A.
System:
The UNT Digital Library
Aeronautical education and research at the Swiss Institute of Technology in Zurich
Progress in the scientific and practical fields of aviation has caused the Swiss Institute of Technology to organize lectures and practical training courses in all three branches of aeronautics and to found centers of scientific research, laboratories, etc., in order to supply the government and industries with scientifically and technically trained engineers.
Date:
April 1931
Creator:
Karner, L. & Ackeret, J.
System:
The UNT Digital Library
Agglutinating, Coking, and By-Product Tests of Coals From Pierce County, Washington
Report discussing testing of coals in Pierce County, Washington. The investigation had three parts: a geological survey of the coal property, washing and crushing tests of the coals, and coking and by-product tests.
Date:
1931
Creator:
Marshall, S. M. & Bird, B. M.
System:
The UNT Digital Library
Airplane Landing Gear
This report presents an investigation of the design and construction of various types of landing gears. Some of the items discussed include: chassises, wheels, shock absorbers (rubber disk and rubber cord), as well as oleopneumatic shock absorbers. Various types of landing gears are also discussed such as the Messier, Bendix, Vickers, and Bleriot.
Date:
July 1931
Creator:
Maiorca, Salvatore
System:
The UNT Digital Library
Airship Model Tests in the Variable Density Wind Tunnel
This report presents the results of wind tunnel tests conducted to determine the aerodynamic characteristics of airship models. Eight Goodyear-Zeppelin airship models were tested in the original closed-throat tunnel. After the tunnel was rebuilt with an open throat a new model was tested, and one of the Goodyear-Zeppelin models was retested. The results indicate that much may be done to determine the drag of airships from evaluations of the pressure and skin-frictional drags on models tested at large Reynolds number.
Date:
January 27, 1931
Creator:
Abbott, Ira H.
System:
The UNT Digital Library
[American Sugar Refining Company Stock Report, December 1931]
American Sugar Refining Company stock report. It covers capitalization, treasure position, earnings, and source of net income.
Date:
December 1931
Creator:
American Sugar Refining Company
System:
The Portal to Texas History
The Amiot 140 M Military Airplane (French): An All-Metal Multiplace High-Wing Monoplane
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.
Date:
February 1931
Creator:
unknown
System:
The UNT Digital Library
Annual Report of the Boy Scouts of America: 1930
Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1930, activities, finance, public relations, organizational leadership, and other information about scouting programs.
Date:
March 2, 1931
Creator:
Boy Scouts of America
System:
The Portal to Texas History
Annual Report of the National Advisory Committee for Aeronautics (16th). Administrative Report Including Technical Reports Nos. 337 to 364
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:
1931
Creator:
unknown
System:
The UNT Digital Library
The Avro 627 "Mailplane" (English): A Single-Seat Biplane
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.
Date:
August 1931
Creator:
unknown
System:
The UNT Digital Library
Basic Requirements of Fuel-Injection Nozzles for Quiescent Combustion Chambers
This report presents test results obtained during an investigation of the performance of a single-cylinder, high-speed, compression-ignition test engine when using multiple-orifice fuel-injection valve nozzles in which the number and the direction of the orifices were varied independently.
Date:
June 1931
Creator:
Spanogle, J. A. & Foster, H. H.
System:
The UNT Digital Library
The Behavior of Conventional Airplanes in Situations Thought to Lead to Most Crashes
Simple flight tests were made on ten conventional airplanes for the purpose of determining their action in two situations, which are generally thought to precede and lead to a large proportion of airplane crashes. These situations are when in an attempt to stretch the glide in a forced landing, the airplane is stalled, and when while taking off, particularly if taking off steeply, the engine fails at a low altitude.
Date:
February 1931
Creator:
Weick, Fred E.
System:
The UNT Digital Library
The Bernard 80 G.R. Long-Distance Airplane (French) : A Two-Place Cantilever Monoplane
Circular presenting a description of the Bernard 80 aircraft. Details are provided on the body shape, wings, ribs, fuel requirements, and flight characteristics.
Date:
July 1931
Creator:
unknown
System:
The UNT Digital Library
The Bernard 120 Seaplane (French): A 1400 hp Single-Seat Monoplane Racer
Circular presenting a description of the Bernard 120, which is a seaplane. Descriptions of the structural elements, engine, and fuel distribution system are provided.
Date:
March 1931
Creator:
Léglise, Pierre
System:
The UNT Digital Library
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 provided.
Date:
March 1931
Creator:
unknown
System:
The UNT Digital Library
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 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.
Date:
August 1931
Creator:
unknown
System:
The UNT Digital Library
Breguet Military Airplane, Type 33: A Two-Place Long-Distance Sesquiplane for Observation and Bombing
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.
Date:
September 1931
Creator:
unknown
System:
The UNT Digital Library
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, and flying qualities are provided.
Date:
April 1931
Creator:
unknown
System:
The UNT Digital Library
Clerget 100 Hp Heavy-Oil Engine
A complete technical description of the Clerget heavy-oil engine is presented along with the general characteristics. The general characteristics are: 9 cylinders, bore 120 mm, stroke 130 mm, four-stroke cycle engine, rated power limited to 100 hp at 1800 rpm; weight 228 kg; propeller with direct drive and air cooling. Moving parts, engine block, and lubrication are all presented.
Date:
January 1931
Creator:
Léglise, Pierre
System:
The UNT Digital Library