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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.
System:
The UNT Digital Library
Factors of Safety and Indexes of Static Tests
The physical resistance of passengers in establishing an upper limit to the strength of airplane cells is examined and arguments and experiments are discussed.
Date:
May 1923
Creator:
Bailly, Le
System:
The UNT Digital Library
Regulation of Air Traffic
The ways in which the international and internal French air traffic accords interact with each other is outlined in this report. The principal questions covered by the present legislation are as follows: 1) Conditions of safety which must be fulfilled by aircraft; 2) Licenses for members of the crew; 3) Traffic rules to be observed by French and foreign aircraft.
Date:
May 1922
Creator:
Devaluez
System:
The UNT Digital Library
Wheel Brakes and Their Application to Aircraft
"The advantages to be gained from braking have not been ignored, and in the search for a suitable method many schemes have been suggested and tried. Some of the methods discussed in this paper include: 1) increasing the height of the landing gear; 2) air brakes of various forms; 3) sprags on tail skid and axle; and 4) wheel brakes. This report focuses on the design of wheel brakes and wheel brake controls" (p. 1).
Date:
May 1928
Creator:
Dowty, G. H.
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.
System:
The UNT Digital Library
Speed Limits of Aircraft
This paper is restricted to the question of attainable speed limits and attacks the problem from different angles. Theoretical limits due to air resistance are presented along with design factors which may affect speed such as wing loads, wing areas, wing section shifting, landing speeds, drag-lift ratios, and power coefficients.
Date:
May 1923
Creator:
Everling, E.
System:
The UNT Digital Library
Structural Methods Employed by the Schutte-Lanz Airship Company
"This article is based on the experience of the Schute-Lanz Airship Company in light construction. The object is to stimulate the employment of these methods in other fields of industry" (p. 1).
Date:
May 1925
Creator:
Gentzcke
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
System:
The UNT Digital Library
Experimental Investigation of the Physical Properties of Medium and Heavy Oils, Their Vaporization and Use in Explosion Engines Part 1
While little has been accomplished in obtaining an abundant supply of light oils from coal and heavy oils, progress has been made on engine design to make use of the heavier oils. Progress has been made in two different directions which are outlined in this paper: the group of engines with medium and high-pressure carburetion in the cylinder; and the group of engines with low-pressure carburetion of the heavy oils before reaching the cylinder.
Date:
May 1926
Creator:
Heinlein, Fritz
System:
The UNT Digital Library
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
System:
The UNT Digital Library
Contribution to the Technique of Landing Large Airships: Part 1
Many treatises in regard to construction of airship sheds are lacking in data on air currents, for which reason this phase of the problem will be here thoroughly discussed in connection with the accompanying photographs of currents.
Date:
May 1929
Creator:
Krell, O.
System:
The UNT Digital Library
Contribution to the Technique of Landing Large Airships: Part 2
Memorandum presenting a description of the development of the mooring mast and how it contributes to the technique of landing large airships. Some of its fundamental requirements and how it can factor into safe landings are provided.
Date:
May 1929
Creator:
Krell, O.
System:
The UNT Digital Library
Technical report of the 1928 Rhon soaring-flight contest
Report presenting some information on the gliders that participated in the 1928 Rhön soaring flight contest. Almost all of the gliders represented an improvement over gliders used in the previous years. A great increase in the skill of the glider pilots is also noted.
Date:
May 1929
Creator:
Lippisch, A.
System:
The UNT Digital Library
On the Strength of Box Type Fuselages
The present investigation relates to a box-type fuselage with sides consisting of thin smooth sheet metal, stiffened by longitudinal members riveted to the flanged channel-section bulkheads or transverse frames and to the semicircular corrugated corner stiffenings. The results obtained in this particular case can be applied to a great number of similar structures.
Date:
May 1929
Creator:
Mathar, J.
System:
The UNT Digital Library
Aviation and Insurance
This article considers some of the causes which hinder the development of aircraft insurance. Different risks are discussed as well as the causes of aircraft accidents. Pilot error, poor airdromes, weather conditions, poorly adapted airplanes, and engine failures are all examined and some conclusions are made.
Date:
May 1922
Creator:
Mayo, R. H.
System:
The UNT Digital Library
Alloys Similar to Duralumin Made in Other Countries Than Germany
Attempts by other countries to develop patents for alloys similar to duralumin are presented. Duralumin is aluminum alloyed with 3.5-4.5% copper, 0.5% magnesium, and 0.25-1% of manganese. A description of various materials that some have attempted to patent are provided.
Date:
May 1925
Creator:
Meissner, K. L.
System:
The UNT Digital Library
Ultra-Light Alloys and Their Utilization on Aircraft
Memorandum presenting an overview of ultra-light alloys and their potential use on an aircraft. A definition of ultra-light alloys, some of the present possibilities of ultra-light alloys, and some of the principles governing the use of the alloys in aircraft are provided.
Date:
May 1924
Creator:
Portevin, A. M. & DeFleury, R.
System:
The UNT Digital Library
The Problem of Fuel Measurement: The Schiske "Konsummeter"
Any measuring device, which immediately indicates the rate of fuel consumption in the desired units, has the advantage of saving considerable time and fuel, besides facilitating the adjustment of the carburetor. The Schiske "Konsummeter" (made by the "PS-Vergaser and Apparatebau A. G.") was designed from the above viewpoint.
Date:
May 1925
Creator:
Praetorius, K. R. H.
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.
System:
The UNT Digital Library
Proposed Air Traffic Law
This report presents a brief history of France's attempts to promulgate an internal air traffic law and then provides a draft of proposed national air traffic laws.
Date:
May 1922
Creator:
Ripert, Georges
System:
The UNT Digital Library
The new French high-speed wind tunnel
The plans for the wind tunnel at Issey-les-Moulineaux are discussed in relation to concerns about the Law of Similitude and propeller speed.
Date:
May 1923
Creator:
Robert
System:
The UNT Digital Library
Materials and Methods of Construction in Light Structures
Different methods of constructing light airplanes are presented with a view toward increasing production and efficiency.
Date:
May 1929
Creator:
Rohrbach, Adolf
System:
The UNT Digital Library
Aerial Convention of October 13, 1919
The aerial convention delegates are listed as well as the set of rules that were developed during the session.
Date:
May 1922
Creator:
Roper
System:
The UNT Digital Library
Discussion of problems relating to the safety of aviation. Part 1
The object of the present treatise is to examine the present status of aerial safety and to review the efforts of various commissions to promote safety.
Date:
May 1928
Creator:
Sabatier, J.
System:
The UNT Digital Library