Serial/Series Title
Country
Month
143 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
143
next
NACA Conference on High-Speed Aerodynamics: A Compilation of Papers Presented
A reproduction of the technical papers presented by staff members of the NACA Laboratories at the NACA Conference on High-Speed Aerodynamics at the Ames Aeronautical Laboratory during March 18-20, 1958. The primary purpose of the conference was to convey to military services and contractors the results of recent research and to provide an opportunity to discuss the results.
Date:
1958-03-18/1958-03-20
Creator:
unknown
System:
The UNT Digital Library
NACA Conference on Aircraft Loads, Structures, and Flutter
"This document contains reproductions of technical papers on some of the most recent research results on aircraft loads, flutter, and structures from the NACA laboratories. These papers were presented by members of the staff of the NACA laboratories at the Conference held at the Langley Aeronautical Laboratory March 5, 6, and 7, 1957. The primary purpose of this Conference was to convey to contractors of the military services and others concerned with the design of aircraft these recent research results and to provide those attending an opportunity to discuss the results" (p. 6).
Date:
March 5, 1957
Creator:
unknown
System:
The UNT Digital Library
Evolution of the Helicopter
Report presenting an investigation of problems related to helicopters. Also included are the history of the evolution of the helicopter and a series of propeller experiments.
Date:
March 1923
Creator:
Balaban, Karl
System:
The UNT Digital Library
The Oehmichen Peugeot Helicopter
The first flights of the Oehmichen helicopter are detailed as well as various aspects of the construction.
Date:
March 1931
Creator:
unknown
System:
The UNT Digital Library
The Art of Writing Scientific Reports
As the purpose of the report is to transmit as smoothly and as easily as possible, certain facts and ideas, to the average person likely to read it, it should be written in a full and simple enough manner to be comprehended by the least tutored, and still not be boring to the more learned readers.
Date:
March 1921
Creator:
Norton, F. H.
System:
The UNT Digital Library
Development of Aeronautical Engines by the Army and Navy
Different aircraft engines are categorized as being of interest to only the Army or Navy or to both armed services. A listing of the different engines is presented along with some statistics, namely, horsepower.
Date:
March 3, 1921
Creator:
unknown
System:
The UNT Digital Library
The Rumpler Passenger Airplane
This report details the Rumpler Limousine which was a further development of the well known type 5 A 2. The fuselage, engine, cabin, wings, controls, and landing gear are all discussed.
Date:
March 1921
Creator:
Langsdorff, Werner v.
System:
The UNT Digital Library
The Law Relating to Air Currents
In the subdivided wing section profile, the diagram of the current is entirely changed and the harmful formation of eddies is avoided through premature deflection. Pressure equalization does not occur between the upper and under sides. This report presents a discussion of the various laws relating to wing design with the conclusion being that lift increases with more acute angles of attack.
Date:
March 1921
Creator:
unknown
System:
The UNT Digital Library
The Goebel Rotary Engine
This report presents a table of specifications of the rotary engine and a very brief description of some of the notable features such as the exhaust valves controlled by means of a fixed cam gear.
Date:
March 1921
Creator:
unknown
System:
The UNT Digital Library
Abacus Giving the Variation of the Mean Pressure of an Aviation Engine as a Function of its Speed of Rotation
Comparing the results of the calculations for computing the mean pressure of an aviation engine for any number of revolutions, with those of experiment, the writer, by numerous examples, shows the perfect agreement between them. This report will show that, by means of a special abacus, an engineer can instantly plot the characteristics of an engine.
Date:
March 1921
Creator:
Margoulis, W.
System:
The UNT Digital Library
Development of a Laminar Boundary Layer Behind a Suction Point
Memorandum presenting an investigation of boundary-layer suction and its favorable effect in deferring transition points as long as possible in order to avoid turbulence.
Date:
March 1952
Creator:
Wuest, W.
System:
The UNT Digital Library
Bagnulo Heavy Fuel Internal Combustion Engine and Its Employment in Aviation
We see with great satisfaction that Bagnulo's studies and experiments on his high-speed, heavy-fuel engines, promise to solve not only the general problem of economical power and hence of thermal efficiency, but also all other special problems, of weight and space, and, what is still more important, range of error.
Date:
March 1922
Creator:
Fiore, Amedeo
System:
The UNT Digital Library
Publicity by Airplane
The future of aerial photography is examined with special reference to corporate uses.
Date:
March 1922
Creator:
Carlier, André
System:
The UNT Digital Library
Aeronautic Insurance
The problem of insuring the emerging commercial aeronautic industry is detailed. The author also motes that a complete solution cannot be obtained until the necessary statistics are compiled.
Date:
March 1922
Creator:
Neal, Erik
System:
The UNT Digital Library
Differential Equations in Airplane Mechanics
In the following report, we will first draw some conclusions of purely theoretical interest, from the general equations of motion. At the end, we will consider the motion of an airplane, with the engine dead and with the assumption that the angle of attack remains constant. Thus we arrive at a simple result, which can be rendered practically utilizable for determining the trajectory of an airplane descending at a constant steering angle.
Date:
March 1922
Creator:
Carleman, M. T.
System:
The UNT Digital Library
Maps and Navigation Methods
Different maps and scales are discussed with particular emphasis on their use in aviation. The author makes the observation that current navigation methods are slow and dangerous and should be replaced by scientific methods of navigation based on loxodromy and the use of the compass.
Date:
March 1922
Creator:
Duval, A.
System:
The UNT Digital Library
The "Universal Propeller": Built by Paragon Engineers, Inc., Baltimore, MD.
At the request of the N.A.C.A. the "Universal Propeller" was operated and explained by the inventor, Mr. Spencer Heath, for the purpose of demonstrating the following features of design: 1) Elimination of continuously running gears, collars or bearings in the pitch control mechanism; 2) The use of engine power in place of manual labor in changing blade angle; 3) The absence of any structural limitation to the range of blade angles available and the possibility of limiting the blade travel between any two predetermined extreme positions; 4) Continuous indication on the instrument board of the blade position; 5) Automatic throttling of the engine while the propeller is passing through the position of neutral pitch.
Date:
March 1922
Creator:
Bacon, David L.
System:
The UNT Digital Library
Some Principles Governing the Establishment of Meteorological Stations Along Air Routes
The organization of a meteorological service for an air route involves the solution of two distinct problems: distribution and grouping of meteorological stations and communications. Experience gained in the establishment of two lines, Paris-Warsaw and Constantinople-Bucharest enables us to establish certain principles, which may be of interest to note here.
Date:
March 1922
Creator:
Aujames, P.
System:
The UNT Digital Library
Notes on Landing Places for Sea Planes Along the Atlantic Coast
This report provides a list of landing locations for seaplanes on the Atlantic coast of the United States and the facilities and services located there.
Date:
March 1922
Creator:
Easter, Ewing
System:
The UNT Digital Library
Seaplanes for Commerce
The advantages of using seaplanes for commercial purposes is discussed. The three primary advantages described include their superior speeds over existing means of transport on the same routes, the available landing fields when flying over the water, and the reduction of distance from the airport to the city is serves due to the seaplane's ability to land in water.
Date:
March 1923
Creator:
Warner, Edward P.
System:
The UNT Digital Library
New Albatross Commercial Airplane "L 58"
The "L 58" is a monoplane with cantilever wings joined directly to the fuselage. It accordingly belongs to the new school of airplane construction, as founded and developed in Germany. A list of performance characteristics is included.
Date:
March 1923
Creator:
Meyer, G.
System:
The UNT Digital Library
Formation of a Vortex at the Edge of a Plate
The flow about the plate of infinite width may be represented as a potential flow with discontinuity surfaces which extend from the plate edges. On the basis of a similitude requirement one succeeds in finding a solution of this problem for the plate of infinite width which is correct for the very beginning of the motion of the fluid. Starting from this solution, the further development of the vortex distribution and shape of the surface are observed in the case of a plate of finite width.
Date:
March 1956
Creator:
Anton, Leo
System:
The UNT Digital Library
Interim Report on Fatigue Characteristics of a Typical Metal Wing
Constant amplitude fatigue tests of seventy-two P-51D "Mustang" wings are reported. The tests were performed by a vibrational loading system and by an hydraulic loading device for conditions with and without varying amounts of pre-load. The results indicate that: (a) the frequency of occurrence of fatigue at any one location is related to the range of the loads applied, (b) the rate of propagation of visible cracks is more or less constant for a large portion of the life of the specimen, and (c) the fatigue strength of the structure is similar to that of notched material having a theoretical stress concentration factor of more than 3.0.
Date:
March 1956
Creator:
Kepert, J. L. & Payne, A. O.
System:
The UNT Digital Library
A Flat Wing With Sharp Edges in a Supersonic Stream
A basic treatment is given for the approximate solution of the problem of two-dimensional supersonic flow past a thin wing at small angles of attack. The pressure distribution at the surface, the lifting force, and the wave drag are determined.
Date:
March 1956
Creator:
Donov, A. E.
System:
The UNT Digital Library