Resource Type
Collection
Serial/Series Title
NACA Technical Memorandums
43
NACA Technical Notes
28
Farmers' bulletin (United States. Department of Agriculture)
12
NACA Aircraft Circulars
11
NACA Technical Reports
11
Farmers' bulletin (United States. Dept. of Agriculture)
5
United States Bureau of Mines Reports
4
National Bureau of Standards Reports
3
Annual Report of the Boy Scouts of America
2
House document (United States. Congress. House)
2
7 More
Degree Department
Country
States
249 Matching Results
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Experimental Investigation of the Physical Properties of Medium and Heavy Oils, Their Vaporization and Use in Explosion Engines Part 2
This report is an evaluation of the experiments on the use of heavy oils in explosion engines. A method for determining the heat of vaporization of these heavy oils is presented.
Date:
May 1926
Creator:
Heinlein, Fritz
Object Type:
Report
System:
The UNT Digital Library
German Training Airplane, Arado "Ar. S.I."
Circular presenting a description of the Arado Ar. S.I., which is a wireless biplane that is both physically attractive and highly performing. A description of the components, controls, construction, characteristics, flying qualities, drawings, and photographs are provided.
Date:
May 1926
Creator:
Manigold, G.
Object Type:
Report
System:
The UNT Digital Library
Kinetographic Flow Pictures
A method is presented for photographing the flow of fluids with a kinetograph.
Date:
May 1926
Creator:
Prandtl, L. & Tietjens, O.
Object Type:
Report
System:
The UNT Digital Library
Metal Airplane Construction
It has long been thought that metal construction of airplanes would involve an increase in weight as compared with wood construction. Recent experience has shown that such is not the case. This report describes the materials used, treatment of, and characteristics of metal airplane construction.
Date:
May 1926
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The potato leafhopper and how to control it.
Describes the characteristics and life cycle of the potato leafhopper, and methods for control.
Date:
May 1926
Creator:
Dudley, J. E.
Object Type:
Book
System:
The UNT Digital Library
Propeller Design - A Simple System Based on Model Propeller Test Data -III
"This report, the third of a series of four, describes a simple system for designing propellers of a standard form. In this report, the system is based on tests of a family of model propellers of standard Navy form, the data from which have been extended by means of calculations to cover the complete range likely to be found in practice. However, it can be worked out for any family having propellers of one general form" (p. 1).
Date:
May 1926
Creator:
Wieck, Fred E.
Object Type:
Report
System:
The UNT Digital Library
Propeller Design: Extension of Test Data on a Family of Model Propellers by Means of the Modified Blade Element Theory 2
This report is the second of a series of four on propeller design, and describes the method used to extend the data obtained from tests on a family of thirteen model propellers to include all propellers of the same form likely to be met in practice. This necessitates the development of a method of propeller analysis which when used to calculate the powers and efficiencies gives results which check the tests throughout their range.
Date:
May 1926
Creator:
Weick, Fred E.
Object Type:
Report
System:
The UNT Digital Library
Propeller Design: Practical Application of the Blade Element Theory 1
"This report is the first of a series of four on propeller design and contains a description of the blade elements or modified Drzewiecke theory as used in the Bureau of Aeronautics, U.S. Navy Department. Blade interference corrections are used which were taken from R.& M. NO. 639 of the British Advisory Committee for Aeronautics. The airfoil characteristics used were obtained from tests of model propellers, not from tests of model wings" (p. 1).
Date:
May 1926
Creator:
Weick, Fred E.
Object Type:
Report
System:
The UNT Digital Library
The Short S.7 "Mussel": A Training Seaplane With 65 Hp. "Cirrus" Engine
Circular presenting a description of the Short "Mussel" S.7, which is designed for use as a light training airplane of robust and simple construction. Information regarding the design, blueprints, and photographs are provided.
Date:
May 1926
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Small Concrete Construction on the Farm.
Describes how to plan and build small concrete structures on the farm.
Date:
May 1926
Creator:
Betts, M. C. (Morris Cotgrave), 1875-1936 & Miller, T. A. H. (Thomas Arrington Huntington), 1885-
Object Type:
Book
System:
The UNT Digital Library
The Vickers "Vendace": A Land or Sea Training Biplane
Circular describing the Vickers "Vendace", which is a land or sea training tractor biplane. Details of the design, wings, construction, control surfaces, fuselage, fabric, cockpits, fuel supply, landing gear, characteristics, and drawings are provided.
Date:
May 1926
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Endurance Tests of Tires
Technical paper issued by the Bureau of Standards over studies conducted on the endurance of tires. 230 tires of 36 different brands were tested during the studies. The results of the studies are presented and discussed. This paper includes tables, and photographs.
Date:
May 25, 1926
Creator:
Holt, W. L. & Wormeley, P. L.
Object Type:
Report
System:
The UNT Digital Library
Air Cooling: An Experimental Method of Evaluating the Cooling Effect of Air Streams on Air-Cooled Cylinders
In this report is described an experimental method which the writer has evolved for dealing with air-cooled engines, and some of the data obtained by its means. Methods of temperature measurement and cooling are provided.
Date:
May 1927
Creator:
Alcock, J. F.
Object Type:
Report
System:
The UNT Digital Library
Bridge Grafting.
Provides instructions for bridge-grafting to save fruit trees that have been damaged by rodents or disease.
Date:
May 1927
Creator:
Yerkes, Guy E. (Guy Eston), 1880-
Object Type:
Book
System:
The UNT Digital Library
Determining the Velocity Distribution in the Boundary Layer of an Airfoil Fitted With a Rotary Cylinder
In the closer investigation of the results obtained from a wing model with a rotary cylinder mounted in its leading edge (NACA TM's 307 and 354), the velocity distribution in the vicinity of the surface of the model was determined by a hot-wire anemometer. The results confirmed the belief that the rotary cylinder had considerable effect on the air flow, but demonstrated the fact that the direct influence of the cylinder is confined to a very thin layer in immediate proximity to the surface.
Date:
May 1927
Creator:
Van der Hegge Zijnen, B. G.
Object Type:
Report
System:
The UNT Digital Library
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.
Date:
May 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Fitting dresses and blouses.
A guide to fitting and alteration of commercial sewing patterns and finished clothing for women.
Date:
May 1927
Creator:
Campbell, Maude
Object Type:
Book
System:
The UNT Digital Library
High-Speed Oil Engines for Vehicles Part 3
Ignition-chamber engines and their fuel injection systems are investigated. Specific details are provided for fuel-injection nozzles and fuel pumps are provided.
Date:
May 1927
Creator:
Hausfelder, Ludwig
Object Type:
Report
System:
The UNT Digital Library
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. A description of the design, hull, tail, power plant, characteristics, performances, drawings, and photographs are provided.
Date:
May 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Multiplicity of Solutions in Aerodynamics
"One of the most striking phenomena which accompany the flow of fluids such as air and water about bodies, is that of changes in character. This phenomena is still very little understood. We will first discuss the nature of these changes and then show that pure theory leads to a multiplicity of characters of flow, among which we will endeavor to indicate those bearing some analogy to experimental results" (p. 1).
Date:
May 1927
Creator:
Dupont, M.
Object Type:
Report
System:
The UNT Digital Library
The Mureaux "Brunet 3C2" Pursuit Airplane
Designed by Engineer Brunet, the 3C2 is an all metal monoplane with two engines and provision for six machine guns and 12 10 Kg. bombs. A description of the design, components, characteristics, flying qualities, drawings, and photographs are provided.
Date:
May 1927
Creator:
Serryer, J.
Object Type:
Report
System:
The UNT Digital Library
Training Airplane "Avia B.H. 11."
Circular presenting a description of the Avia B.H. 11, which is a two-seat, low-wing monoplane with a plywood fuselage. The report describes the structural details and flight performance and provides blueprints and photographs of the aircraft.
Date:
May 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Lift, drag, and elevator hinge moments of Handley Page control surfaces
"This report combines the wind tunnel results of tests on four control surface models made in the two wind tunnels of the Navy Aerodynamic Laboratory, Washington Navy Yard, during the years of 1922 and 1924, and submitted for publication to the National Advisory Committee for Aeronautics May 7, 1927. The purpose of the tests was to compare, first, the lifts and the aerodynamic efficiencies of the control surfaces from which their relative effectiveness as tail planes could be determined; then the elevator hinge moments upon which their relative ease of operation depended. The lift and drag forces on the control surface models were obtained for various stabilizer angles and elevator settings in the 8 by 8 foot tunnel by the writer in 1922; the corresponding hinge moments were found in the 4 by 4 foot tunnel by Mr. R. M. Bear in 1924" (p. 429).
Date:
May 7, 1927
Creator:
Smith, R. H.
Object Type:
Report
System:
The UNT Digital Library
The N.A.C.A. photographic apparatus for studying fuel sprays from oil engine injection valves and test results from several researches
"Apparatus for recording photographically the start, growth, and cut-off of oil sprays from injection valves has been developed at the Langley Memorial Aeronautical Laboratory. The apparatus consists of a high-tension transformer by means of which a bank of condensers is charged to a high voltage. The controlled discharge of these condensers in sequence, at a rate of several thousand per second, produces electric sparks of sufficient intensity to illuminate the moving spray for photographing. The sprays are injected from various types of valves into a chamber containing gases at pressures up to 600 pounds per square inch" (p. 361).
Date:
May 25, 1927
Creator:
Beardsley, Edward G.
Object Type:
Report
System:
The UNT Digital Library