Resource Type
Serial/Series Title
50 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
50
next
Atomization of Liquid Fuels Part 3: Critical Discussion of Experimental Reesults, Mixing the Atomized Fuel with Air
This report provides a critical discussion of the results of the experiments conducted in the previous NACA-TM's 329 and 330. The main object of this investigation was to determine the size of the drops in mechanical atomization.
Date:
September 1925
Creator:
Kuehn, R.
System:
The UNT Digital Library
Aerodynamic Characteristics of Aircraft With Reference to Their Use
Report discussing economic and design characteristics are examined in the design of airplanes and airships.
Date:
1925
Creator:
Panetti, M.
System:
The UNT Digital Library
Pressure Distribution on Fuselage of Airplane Model
Memorandum describing the method of determining the pressure distribution on the fuselage, with special attention to how it is affected by the presence of the wings.
Date:
February 1925
Creator:
unknown
System:
The UNT Digital Library
Concrete Airship Sheds at Orly, France Part 2: Supporting Structure and Method of Moving, Mechanism for Moving the Centering, Apparatus for Handling the Materials, Remarks on Construction Details
This report deals mainly with the methods of construction employed when after the plan had been approved. The foundation, side walls, doors and roof are all discussed and the economic savings resulting from this method of construction.
Date:
October 1925
Creator:
Freyssinet
System:
The UNT Digital Library
Concrete Airship Sheds at Orly, France Part 1: General Aspect of the Problem, Basic Principles of the Final Project, Principal Structural Elements
This report details the contest to design and build concrete airship hangers. The difficulty lies in the magnitude of the absolute dimensions. An airship shed must withstand two principal types of stresses: those resulting from its own weight and those due to the wind. This report discusses both problems in detail.
Date:
October 1925
Creator:
Freyssinet
System:
The UNT Digital Library
Report on Commercial Air Transportation Activities in England, France, Germany and Holland
The following pages present a review of the air transportation activities of England, France, Germany and Holland, based on an inspection trip during the summer of 1924. The different components described include operating companies, nature of transportation services, air traffic, flying equipment, government relations, and general remarks.
Date:
June 1925
Creator:
Van Zandt, J. Parker
System:
The UNT Digital Library
High Velocity Wind Tunnels: Their Application to Ballistics, Aerodynamics, and Aeronautics
"The object of this article is to set forth the particular properties of swiftly-moving air, how these affect the installation of a wind tunnel, the experimental results already obtained, the possible applications of such a tunnel, and what can be easily accomplished at the present time" (p. 1).
Date:
June 1925
Creator:
Huguenard, E.
System:
The UNT Digital Library
Recent Progress in the Theoretical Deduction of Airplane Wings
The designing of an airplane requires an accurate knowledge of the aerodynamic properties of its wings, as expressed in the polar diagram. It is important to continue the theoretical researches on the aerodynamic phenomena of wings, in order to determine by calculation, their fundamental characteristics and to increase and formulate our knowledge in this field.
Date:
November 1925
Creator:
Panetti, M.
System:
The UNT Digital Library
Schütte-Lanz Airship Projects After the War
The stressing of an airship depends on three nonuniformly distributed forces: air forces; the distribution of acceleration forces; and how the air pressure is distributed on the hull. This report examines the stresses and comes to conclusions on the size of airships.
Date:
October 1925
Creator:
Weiss, Georg
System:
The UNT Digital Library
Suggestions for Courses of Instruction in Aviation
Suggestions are presented for the establishment of lecture courses on aviation. An outline of some courses that have previously been given is provided.
Date:
March 1925
Creator:
Poeschel
System:
The UNT Digital Library
Pressure Distribution on Joukowski Wings
The hydrodynamics and mathematical models as applied to the potential flow about a Joukowski wing are presented.
Date:
October 1925
Creator:
Blumenthal, Otto & Trefftz, E.
System:
The UNT Digital Library
The "Navigraph"
"Commander Le Prieur, whose flight experience in a low-speed seaplane we related in our number of September 27, 1924, invented, four years ago, an instrument destined to render very great service to aviators, namely, the "navigraph", designed to correct errors of orientation due to the effect of the winds during flight" (p. 1).
Date:
June 1925
Creator:
Le Prieur, Ives
System:
The UNT Digital Library
Increasing the Power of Internal Combustion Engines
This report presents various methods for increasing the power of engines such as supercharging and turbocharging.
Date:
July 1925
Creator:
Prayer, Georg
System:
The UNT Digital Library
Airplane Parachutes
The "Bulletin Technique", of March, 1919, gave the results of tests and studies made up to that date in connection with airplane parachutes. This work has been continued.
Date:
August 1925
Creator:
Mazer
System:
The UNT Digital Library
Recent experiments at the Gottingen Aerodynamic Institute
This report presents the results of various experiments carried out at the Gottingen Aerodynamic Institute. These include: experiments with Joukowski wing profiles; experiments on an airplane model with a built-in motor and functioning propeller; and the rotating cylinder (Magnus Effect).
Date:
July 1925
Creator:
Ackeret, J.
System:
The UNT Digital Library
Relation Of "Lilienthal Effect" to Dynamic Soaring Flight
"In this article, the phenomena of the upward component in the case of flat surfaces will be referred to as the "Lilienthal effect." The Lilienthal effect will be distinguished from the Knoller-Betz effect which is explained by means of vertical wind oscillations, at the basis of which, however, there lie air motions which the Lilienthal effect could not produce. It will be shown that the same cause, which can produce the Lilienthal effect on flat airfoils, considerably strengthens the thrust due to the Knoller-Betz effect" (p. 1).
Date:
July 1925
Creator:
Fick, Roderich
System:
The UNT Digital Library
Computation of Cantilever Airplane Wings
The purpose of this treatise is, first of all, the determination of the effect of variously loaded spars on one another, since the neglect of this effect would present an economically very unfavorable computation method. The system of spars and cross-bars alone (whether solid or built-up) does not matter at first, the original assumption being that the spars are rigidly braced by the cross-bars.
Date:
July 1925
Creator:
Thalau, K.
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
European Commercial Aeronautics
"During the months of June to September, 1924, I personally visited the principal airports of Europe and traveled as a passenger some 6500 air miles on English, French, Romanian, Polish, German and Dutch air lines in order to investigate the development of commercial aviation abroad. The results of the investigation are embodied in a series of reports, of which a summary of the general findings is given below" (p. 1).
Date:
May 1925
Creator:
Van Zandt, J. Parker
System:
The UNT Digital Library
Air forces on airfoils moving faster than sound
We are undertaking the task of computing the air forces on a slightly cambered airfoil in the absence of friction and with an infinite aspect ratio. We also assume in advance that the leading edge is very sharp and that its tangent lies in the direction of motion.
Date:
June 1925
Creator:
Ackeret, J.
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
Light Airplanes of France, Germany, Italy, Belgium, Holland, Czechoslovakia and Lithuania
Descriptions of different models of airplanes that took part in the "Tour of France" cross-country race are listed. Each plane is described in regards to components, characteristics, flying qualities, and country of origin.
Date:
February 1925
Creator:
unknown
System:
The UNT Digital Library
Effect of Speed on Economy of Airship Traffic
The economic costs and benefits of speed on airship traffic are calculated and different factors are considered.
Date:
February 1925
Creator:
Bleistein, W.
System:
The UNT Digital Library
Pitot-Static Tubes for Determining the Velocity of Air
On the occasion of the formulation of the rules for testing the efficiency of ventilators and compressors, experiments were instituted by the subcommittee on ventilators for the production of suitable tubes for velocity and pressure measurements.
Date:
February 1925
Creator:
Kumbruch, H.
System:
The UNT Digital Library