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The Albatros L 72A: A German Newspaper Carrier With Slotted Wings

Description: The Albatros 72A is a normal tractor biplane specifically designed to deliver newspapers by dropping them overboard in bundles for ground transport to pick up. It has a 42 ft. wingspan, and a 220 HP B.M.W. engine.
Date: June 1926
Partner: UNT Libraries Government Documents Department
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Application of The "Magnus Effect" to the Wind Propulsion of Ships

Description: Report presenting an explanation of the Flettner wind-driven rotor ship and how it functions using the "Magnus effect". The advantages of the construction of this type of ship and the development of flow around the cylinder used to power it are described.
Date: June 1926
Creator: Prandtl, L.
Partner: UNT Libraries Government Documents Department
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Calculation of Combining Effects in the Structure of Airplane Wings: A Rational Basis for Estimating the Reduction in the Design Load on Wing Beams Due to the Influence of Ribs and Covering Toward Causing the Beams to Deflect Together

Description: This lecture concerns the combining effects in airplane wings so as to save some of the dead weight. Equations are provided in order to calculate some of the load characteristics and some of the effects to be considered.
Date: June 1926
Creator: Thalau, K.
Partner: UNT Libraries Government Documents Department
open access

Coal-Mine Fatalities in May, 1926

Description: Report issued by the U.S. Bureau of Mines on the coal-mining related deaths in May, 1926. The 126 accidents are documented and categorized. The accidents are analyzed in order to prevent future accidents, and to implement safety procedures. This report includes tables.
Date: June 1926
Creator: Adams, William Waugh
Partner: UNT Libraries Government Documents Department
open access

Metal Spars

Description: Certain principles are common to all metal spars and the design of a particular metal spar is followed throughout the design process.
Date: June 1926
Creator: Haddon, J. D.
Partner: UNT Libraries Government Documents Department
open access

The N.A.C.A. CYH airfoil section

Description: The NACA CYH airfoil section is described and its aerodynamic characteristics are given as tested in the NACA variable density wind tunnel at twenty atmosphere pressure. This section has a low drag, a high maximum lift, and a small travel of center of pressure.
Date: June 1926
Creator: Higgins, George J.
Partner: UNT Libraries Government Documents Department
open access

Propeller Design - A Simple Method for Determining the Strength of Propellers - IV

Description: "The object of this report, the last of a series of four on propeller design, is to describe a simple method for determining whether the strength of a propeller of a standard form is sufficient for safe operation. An approximate method of stress analysis is also given" (p. 1).
Date: June 1926
Creator: Weick, Fred E.
Partner: UNT Libraries Government Documents Department
open access

Steam Power Plants in Aircraft

Description: "The employment of steam power plants in aircraft has been frequently proposed. Arguments pro and con have appeared in many journals. It is the purpose of this paper to make a brief analysis of the proposal from the broad general viewpoint of aircraft power plants. Any such analysis may be general or detailed" (p. 1).
Date: June 1926
Creator: Wilson, E. E.
Partner: UNT Libraries Government Documents Department
open access

Tasks of Air Flow Research

Description: The researches at the Gottingen Institute are discussed especially in regards to the physical properties of fluids. The three main properties of fluids examined concern density, viscosity, and compressibility.
Date: June 1926
Creator: Prandtl, L.
Partner: UNT Libraries Government Documents Department
open access

Tests of Large Columns with H-Shaped Sections

Description: Report issued by the Bureau of Standards over studies conducted on h-shaped columns. Physical and chemical tests were conducted on different types of columns. The results are presented and discussed. This report includes tables, illustrations, and photographs.
Date: June 11, 1926
Creator: Tuckerman, L. B. & Stang, A. H.
Partner: UNT Libraries Government Documents Department
open access

Wibault Two-Seat Monoplane 8C2: An All-Metal Pursuit and Observation Airplane

Description: Michel Wibault's two seat monoplane 8C2, is similar to the Parasol pursuit monoplane which preceded it. It has no perishable parts in its structure and needs no special storage or coverings. The sample aeroplane uses a 500 HP Hispano-Suiza engine but can accept a 400-600HP engine from a variety of manufacturers with little difficulty. It uses a two blade tractor propeller.
Date: June 1926
Creator: Serryer, J.
Partner: UNT Libraries Government Documents Department
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