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 Decade: 1920-1929
 Year: 1924
 Collection: Technical Report Archive and Image Library
Diaphragms for Aeronautic Instruments

Diaphragms for Aeronautic Instruments

Date: January 1, 1924
Creator: Hersey, M D
Description: This investigation was carried out at the request of the National Advisory Committee for Aeronautics and comprises an outline of historical developments and theoretical principles, together with a discussion of expedients for making the most effective use of existing diaphragms actuated by the hydrostatic pressure form an essential element of a great variety instruments for aeronautic and other technical purposes. The various physical data needed as a foundation for rational methods of diaphragm design have not, however, been available hitherto except in the most fragmentary form.
Contributing Partner: UNT Libraries Government Documents Department
Remarks on building of low-powered airplanes

Remarks on building of low-powered airplanes

Date: January 1, 1924
Creator: Langsdorff, Werner V
Description: If the low-powered airplane is to be used advantageously by private individuals, the most important consideration is a smaller fuel consumption and, hence, a lower engine power. From experiments with gliders, it appears entirely possible, by utilizing ascending winds (on the weather side of mountains and those generated by the heat of the sun) and by employing engine flight intermittently, as required to fly long distances over land.
Contributing Partner: UNT Libraries Government Documents Department
Tests on duralumin columns for aircraft construction

Tests on duralumin columns for aircraft construction

Date: November 1, 1924
Creator: Lee, John G
Description: The following paper is based on the results of tests, upon duralumin columns, contained in two theses presented to the Department of Civil and Sanitary Engineering of the Massachusetts Institute of Technology.
Contributing Partner: UNT Libraries Government Documents Department
The vector ruling protractor

The vector ruling protractor

Date: March 1, 1924
Creator: Zahm, A F
Description: The theory, structure and working of a vector slide rule is presented in this report. This instrument is used for determining a vector in magnitude and position when given its components and its moment about a point in their plane.
Contributing Partner: UNT Libraries Government Documents Department
Device for measuring sound in airplane engines

Device for measuring sound in airplane engines

Date: June 1, 1924
Creator: Robrovsky, T
Description: I will here call attention to a device, constructed according to the system of Gati with which it is possible to measure the sound of an engine and test the effect of a silencer.
Contributing Partner: UNT Libraries Government Documents Department
Ultra-light alloys and their utilization on aircraft

Ultra-light alloys and their utilization on aircraft

Date: May 1, 1924
Creator: Defleury, R & Portevin, A M
Description: We will arbitrarily call alloys having a specific gravity of less than 2 "ultra-light", in order to distinguish them from "light" alloys with a specific gravity of 2 to 3. Thus far it has been possible to make ultra-light alloys only by employing a large proportion of magnesium.
Contributing Partner: UNT Libraries Government Documents Department
Methods of experimentation with models and utilization of results

Methods of experimentation with models and utilization of results

Date: February 1, 1924
Creator: Robert,
Description: The present report treats the subject of testing small models in a wind tunnel and of the methods employed for rendering the results constant, accurate and comparable with one another. Detailed experimental results are given.
Contributing Partner: UNT Libraries Government Documents Department
Magnan glider M-2

Magnan glider M-2

Date: February 1, 1924
Creator: Lesage, M Andre
Description: The construction of the Magnan glider, M-2, is presented which is designed to fly in so-called horizontal winds.
Contributing Partner: UNT Libraries Government Documents Department
The practical difficulties of commercial flying

The practical difficulties of commercial flying

Date: March 1, 1924
Creator: Courtney, F T
Description: This paper relates some of the problems commercial aircraft companies have in attracting larger numbers of paying customers. The author discusses some remedies such as changing the public perception of flying as dangerous.
Contributing Partner: UNT Libraries Government Documents Department
Motion of spheres in still fluids

Motion of spheres in still fluids

Date: April 1, 1924
Creator: Hirsch, P
Description: The behavior of a liquid or gaseous medium, in which a solid body can move freely under the action of a force of constant magnitude and direction, is yet little known.
Contributing Partner: UNT Libraries Government Documents Department
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