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  Partner: UNT Libraries Government Documents Department
 Decade: 1920-1929
 Year: 1923
 Collection: National Advisory Committee for Aeronautics Collection
The New Interpretation of the Laws of Air Resistance

The New Interpretation of the Laws of Air Resistance

Date: April 1, 1923
Creator: Prandtl, L
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.
Contributing Partner: UNT Libraries Government Documents Department
Seaplanes for commerce

Seaplanes for commerce

Date: March 1, 1923
Creator: Warner, Edward P
Description: The advantages of using seaplanes for commercial purposes is discussed.
Contributing Partner: UNT Libraries Government Documents Department
Technical Section of Aeronautics

Technical Section of Aeronautics

Date: February 1, 1923
Creator: Lesage, Andre
Description: The duties of the Technical Section are listed along with facilities for testing. Different categories of tests are discussed and some sample results included.
Contributing Partner: UNT Libraries Government Documents Department
Spontaneous combustion of hydrogen

Spontaneous combustion of hydrogen

Date: December 1, 1923
Creator: Pothmann, PH & Nusselt, Wilhelm
Description: It is shown by the author's experiments that hydrogen which escapes to the atmosphere through openings in the system may burn spontaneously if it contains dust. Purely thermal reasoning can not account for the combustion. It seems to be rather an electrical ignition. In order to determine whether the cause of the spontaneous ignition was thermo-chemical, thermo-mechanical, or thermo-electrical, the experiments in this paper were performed.
Contributing Partner: UNT Libraries Government Documents Department
Rules and regulations governing the Fokker Soaring-Flight Contest over water or level land

Rules and regulations governing the Fokker Soaring-Flight Contest over water or level land

Date: June 1, 1923
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Replacing the weight of materials consumed on airships

Replacing the weight of materials consumed on airships

Date: June 1, 1923
Creator: Crocco, G A
Description: Two methods to replace the weight of gas lost on long airship flights are discussed: condensing the water of combustion and thermic sustentation. In the present article we will discuss the first method, leaving the second to be examined in a subsequent article.
Contributing Partner: UNT Libraries Government Documents Department
Wind-driven propellers (or "windmills")

Wind-driven propellers (or "windmills")

Date: April 1, 1923
Creator: Munk, Max M
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.
Contributing Partner: UNT Libraries Government Documents Department
Wind Tunnel of Zeppelin Airship Company

Wind Tunnel of Zeppelin Airship Company

Date: April 1, 1923
Creator: Munk, Max M
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.
Contributing Partner: UNT Libraries Government Documents Department
My experience with helicopters

My experience with helicopters

Date: April 1, 1923
Creator: Oemichen, Etienne
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.
Contributing Partner: UNT Libraries Government Documents Department
New Albatross commercial airplane "L 58"

New Albatross commercial airplane "L 58"

Date: March 1, 1923
Creator: Meyer, G
Description: 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.
Contributing Partner: UNT Libraries Government Documents Department
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