121 Matching Results

Search Results

prev Results: 25 - 48 next
open access

Loss of the Dixmude

Description: The causes of the destruction of the Dixmude are discussed and some conclusions are drawn. The author believes a gasoline fire instead of a lightning strike was probably responsible, but the public believes otherwise.
Date: April 1924
Creator: Eckener, Hugo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

My Experience With Helicopters

Description: The author recounts his experiments with helicopters. The object of his investigations was to remain stationary in the air for five minutes and to make a closed flight at low altitude. Some of the topics discussed include stabilization, horizontal flight, and directional control.
Date: April 1923
Creator: Oemichen, Etienne
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind-Driven Propellers (Or "Windmills")

Description: Wind-driven propellers are much used as sources of power for equipment such as radios. This report establishes the principles involved and acquaints the reader with rules for design of such windmills.
Date: April 1923
Creator: Munk, Max M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wind Tunnel of Zeppelin Airship Company

Description: This report discusses the general considerations for the design of aerodynamic laboratories. The dimensions, construction, and components of the wind tunnel are given special attention.
Date: April 1923
Creator: Munk, Max M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The New Interpretation of the Laws of Air Resistance

Description: A closer examination of Newton's formula for air resistance shows that it is well to consider the air as an ordinary fluid, and, indeed for most of the velocities considered, as a non-compressible fluid, so long as the dimensions of the moving body are large in comparison with the mean free path of the particles of air.
Date: April 1923
Creator: Prandtl, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Metal Construction

Description: The future development of aerial navigation is closely connected with the condition of obtaining airplanes of great stability and sufficient strength. Different construction materials such as wood, aluminum, iron, and alloys are examined to determine which materials or combination of materials provides a greater coefficient of safety.
Date: April 1922
Creator: Verduzio, Rodolfo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Commercial Airplanes and Seaplanes

Description: This report considers as the dominating characteristic, either the load carried, the speed, the radius of action, the fuel consumption, the activity of transport, or, lastly, the qualities of comfort and safety. The first four factors determine the theoretical efficiency, while the others determine its practical efficiency.
Date: April 1922
Creator: Royer, Etienne
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Testing Airplanes in Flight: Determining Position of Resultant of Action of Air and Longitudinal Stability of an Airplane at Different Angles of Attack

Description: "Measurements made during flight with the triple recording device which gives the horizontal and vertical speeds of an airplane and the angle it makes with the horizon, render it possible to calculate its lift, its drag, and R the resultant of the action of the air both in magnitude and direction, but with these data alone, it is impossible to determine the position of this resultant in the plane of symmetry of the airplane. We will also see how we may determine the position of R during flight … more
Date: April 1922
Creator: Senouque, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Irresponsibility Clause in Air Traffic Contracts

Description: This report examines the question of the responsibility of the carrier in air traffic. The French were concerned about the competitive advantage the English companies enjoyed because of differences in their respective laws.
Date: April 1922
Creator: Porquet
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wing Resistance Near the Ground

Description: In the present treatise, a convenient method will be indicated, which makes it possible to determine the polar curve of an airplane at short distances from the ground by a simple short calculation, when the polar curve is known for flight in unlimited space.
Date: April 1922
Creator: Wieselsberger, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Joukowski Wings

Description: To sum up, Professor Joukowski's theory of supporting wings renders it possible to calculate the coefficient of lift in terms of the angle of attack, and Prandtl's coefficient of induced drag and the correction of the angle of attack in terms of the disposition and aspect ratio of the wings.
Date: April 1922
Creator: Margoulis, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Propeller Theory of Professor Joukowski and His Pupils

Description: This report gives a summary of the work done in Russia from 1911 to 1914, by Professor Joukowski and his pupils. This summary will show that these men were the true originators of the theory, which combines the theory of the wing element and of the slipstream.
Date: April 1922
Creator: Margoulis, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Influence of Elliptical Distribution of Lift on Strength of Airplane Wings

Description: "Hitherto it has been generally assumed, in calculating the fall of an airplane, that the forces withstood by the latter were distributed uniformly throughout the whole length of the wing. In reality this is not the case and German engineers in particular are now assuming an elliptical distribution of the forces. The latter hypothesis has made it possible to carry out a certain number of calculations which have been verified by experiment" (p. 1).
Date: April 1922
Creator: Dorand
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Distribution of Pressure on Fuselage of Airplane Model: Communication From Rijks-Studiedienst Voor De Luchtvaart of Amsterdam

Description: In order to study the distribution of the pressure on the surfaces of a fuselage and the influence of the wing on the air flow along these surfaces, we have made tests pertaining to the bottom and one side. In this particular case, the wing causes an increase in pressure along the sides of the fuselage.
Date: April 1922
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Applying the results of experiments on small models in the wind tunnel to the calculation of full-sized aircraft

Description: This report presents the attempt to develop a law which will permit the use of results obtained on small models in a tunnel for the calculation of full-sized airplanes, or if it exists, a law of similitude relating air forces on a full-sized plane to those on a reduced scale model.
Date: April 1922
Creator: Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Coupling of Engines

Description: This report examines the idea of coupling numerous engines together to turn a single propeller, which the author feels would free aircraft design from the problems of multi-engine and propeller design.
Date: April 1921
Creator: Boccaccio, Paul
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Resume of the Theory of Naval and Aerial Propulsive Propellers and of Airplanes in the Rectilinear Flight

Description: Though dissimilar, these two subjects have been united because they have some points in common. The computation of the movement of an airplane can only be correctly established if we are in a position to know exactly the thrust and resisting torque of the propeller for the various values of slip, which may vary greatly according to circumstance. The first part of the work concerns propellers and introduces as a fundamental variable, the true slip (delta) with respect to the effective pitch, whi… more
Date: April 1921
Creator: Rateau, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Technical Development of the Transport airplane: Report of the Aero-Technical Conference of the Scientific Association for Aeronautics, March 5, 1919

Description: The abolition of military qualifications gives free scope to new technical possibilities in the development of transport airplanes. This report notes the various considerations that must be made when designing aircraft to meet the needs of commercial passengers. Comfort and safety must be emphasized.
Date: April 1921
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen