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Nomographic Charts for Computing the Rate of Leakage From Natural-Gas Lines

Description: Report comprised of two nomographic charts to aid in a quick computation of leak losses from gas lines at both constant and varying temperatures and a narrative description of the method and usage of the charts for computing the rate of leakage from a fall in pressure or change in temperature in gas lines.
Date: May 1926
Creator: Bennett, E. O.
Partner: UNT Libraries Government Documents Department
open access

The Vickers "Vendace": A Land or Sea Training Biplane

Description: Circular describing the Vickers "Vendace", which is a land or sea training tractor biplane. Details of the design, wings, construction, control surfaces, fuselage, fabric, cockpits, fuel supply, landing gear, characteristics, and drawings are provided.
Date: May 1926
Partner: UNT Libraries Government Documents Department
open access

The Short S.7 "Mussel": A Training Seaplane With 65 Hp. "Cirrus" Engine

Description: Circular presenting a description of the Short "Mussel" S.7, which is designed for use as a light training airplane of robust and simple construction. Information regarding the design, blueprints, and photographs are provided.
Date: May 1926
Partner: UNT Libraries Government Documents Department
open access

Endurance Tests of Tires

Description: Technical paper issued by the Bureau of Standards over studies conducted on the endurance of tires. 230 tires of 36 different brands were tested during the studies. The results of the studies are presented and discussed. This paper includes tables, and photographs.
Date: May 25, 1926
Creator: Holt, W. L. & Wormeley, P. L.
Partner: UNT Libraries Government Documents Department
open access

German Training Airplane, Arado "Ar. S.I."

Description: Circular presenting a description of the Arado Ar. S.I., which is a wireless biplane that is both physically attractive and highly performing. A description of the components, controls, construction, characteristics, flying qualities, drawings, and photographs are provided.
Date: May 1926
Creator: Manigold, G.
Partner: UNT Libraries Government Documents Department
open access

All-Metal Junkers Airplane, Type F 13

Description: Circular describing the all-metal Junkers airplane, specifically the F 13 type. The primary characteristics of the airplanes are the thick cantilever Junkers wing without stay-wires and the all-metal construction. A description of the design, flight characteristics, and some photographs are provided.
Date: May 1926
Partner: UNT Libraries Government Documents Department
open access

Kinetographic Flow Pictures

Description: A method is presented for photographing the flow of fluids with a kinetograph.
Date: May 1926
Creator: Prandtl, L. & Tietjens, O.
Partner: UNT Libraries Government Documents Department
open access

Experimental Investigation of the Physical Properties of Medium and Heavy Oils, Their Vaporization and Use in Explosion Engines Part 1

Description: While little has been accomplished in obtaining an abundant supply of light oils from coal and heavy oils, progress has been made on engine design to make use of the heavier oils. Progress has been made in two different directions which are outlined in this paper: the group of engines with medium and high-pressure carburetion in the cylinder; and the group of engines with low-pressure carburetion of the heavy oils before reaching the cylinder.
Date: May 1926
Creator: Heinlein, Fritz
Partner: UNT Libraries Government Documents Department
open access

Metal Airplane Construction

Description: It has long been thought that metal construction of airplanes would involve an increase in weight as compared with wood construction. Recent experience has shown that such is not the case. This report describes the materials used, treatment of, and characteristics of metal airplane construction.
Date: May 1926
Partner: UNT Libraries Government Documents Department
open access

Propeller Design: Practical Application of the Blade Element Theory 1

Description: "This report is the first of a series of four on propeller design and contains a description of the blade elements or modified Drzewiecke theory as used in the Bureau of Aeronautics, U.S. Navy Department. Blade interference corrections are used which were taken from R.& M. NO. 639 of the British Advisory Committee for Aeronautics. The airfoil characteristics used were obtained from tests of model propellers, not from tests of model wings" (p. 1).
Date: May 1926
Creator: Weick, Fred E.
Partner: UNT Libraries Government Documents Department
open access

Propeller Design: Extension of Test Data on a Family of Model Propellers by Means of the Modified Blade Element Theory 2

Description: This report is the second of a series of four on propeller design, and describes the method used to extend the data obtained from tests on a family of thirteen model propellers to include all propellers of the same form likely to be met in practice. This necessitates the development of a method of propeller analysis which when used to calculate the powers and efficiencies gives results which check the tests throughout their range.
Date: May 1926
Creator: Weick, Fred E.
Partner: UNT Libraries Government Documents Department
open access

Propeller Design - A Simple System Based on Model Propeller Test Data -III

Description: "This report, the third of a series of four, describes a simple system for designing propellers of a standard form. In this report, the system is based on tests of a family of model propellers of standard Navy form, the data from which have been extended by means of calculations to cover the complete range likely to be found in practice. However, it can be worked out for any family having propellers of one general form" (p. 1).
Date: May 1926
Creator: Wieck, Fred E.
Partner: UNT Libraries Government Documents Department
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