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Motion of Spheres in Still Fluids

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. Only in connection with a few special problems, which belong in this field, have experiments been tried and these chiefly concern technically important cases. The behavior of the simplest shaped bodies has as yet been scarcely investigated at all" (p. 1).
Date: April 1924
Creator: Hirsch, P.
Partner: UNT Libraries Government Documents Department
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Cranberry harvesting and handling.

Description: Recommends methods of harvesting, handling, storing, and packing cranberries in preparation for market. Discusses the function of cooperative cranberry organizations in relation to sales and prices.
Date: April 1924
Creator: Franklin, Henry J. (Henry James), 1883-1958; Darrow, George M. (George McMillan), 1889- & Malde, O. G. (Ole Gustav), 1880-
Partner: UNT Libraries Government Documents Department
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Fatigue of Internal Combustion Engines

Description: Engine conditions such as pressure characteristics, temperatures, and mechanical fatigue enable the employment of a criterion of general fatigue which simultaneously takes account of both mechanical and thermal conditions, for the sake of comparing any projected engine with engines of the same type already in use.
Date: April 1924
Creator: Dumanois, P.
Partner: UNT Libraries Government Documents Department
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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
Partner: UNT Libraries Government Documents Department
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Testing Airplane Fabrics

Description: "The following considerations determine the strength of airplane fabrics: 1. maximum air forces acting on the surfaces (including local stresses); 2. tensions produced in the fabrics, in the directions of both warp and filling; 3. factor of safety required. The question of the permissible depression of the fabric as affecting the aerodynamic requirements in regard to the maintenance of shape of the section, the tenacity and extensibility of the layer of dope, its strength and its permeability t… more
Date: April 1924
Creator: Pröll, A.
Partner: UNT Libraries Government Documents Department
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The Induction Factor Used for Computing the Rolling Moment Due to the Ailerons

Description: In the following note, prepared for the National Advisory Committee for Aeronautics, this induction factor is determined from the result of a model test, and compared with a formula recently developed by the author. The two results are found to be in substantial agreement.
Date: April 1924
Creator: Munk, Max M.
Partner: UNT Libraries Government Documents Department
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Longitudinal oscillation of an airplane Part 1: problem and method

Description: Report presenting some theoretical calculations for determining the problems of accelerated and disturbed motion, phenomena in an accidental or intentional disturbance through the deflection of the rudder or elevator, or any other change in the conditions of flight.
Date: April 1924
Creator: Fuchs, R. & Hopf, L.
Partner: UNT Libraries Government Documents Department
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Torsional Strength of Nickel Steel and Duralumin Tubing as Affected by the Ratio of Diameter to Gage Thickness

Description: "This investigation was made at the request of the Bureau of Aeronautics. Since the ordinary torsion formula is based on elastic resistance to deformation, it is inaccurate for determination of ultimate stresses in thin wall tubing subjected to torsional loads. It has been found that the torsional modulus of rupture varies with the ratio of diameter to gage thickness and the object of these tests was to determine the extent of these variations for subject materials. This is somewhat of a prorog… more
Date: April 1924
Creator: Otey, N. S.
Partner: UNT Libraries Government Documents Department
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Comparing the Performance of Geometrically Similar Airplanes

Description: "This note has been prepared for the National Advisory Committee for Aeronautics. It deals with the model rules relating to aeronautical problems, and shows how the characteristics of one airplane can be determined from those of another airplane of different weight or size, and of similar type. If certain rules for the ratios of the dimensions, the weights and the horsepower are followed, a small low-powered airplane can be used for obtaining information as to performance, stability, controllab… more
Date: April 1924
Creator: Munk, Max M. & Warner, Edward P.
Partner: UNT Libraries Government Documents Department
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