October 1, 1920

Safety in Flight

Development of German Aircraft Engines

Aluminum Alloys

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Safety in Flight

Excerpt from a lecture delivered by Air Commander R. K. Bagnall Wild, Royal Air Force, before the Scottish Branch of the Royal Aeranoutical Society during March, 1920.
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Development of German Aircraft Engines

When war broke out in 1914, the mean power of the aviation engines at the disposal of the German Air Force was 100 to 120 hp. on the ground . The unit weight of these engines, including the water and oil contained in them, was from 1.8 to 2 kg. per hp.

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Aluminum Alloys

Iron ranks first, of all the metals. It is unthinkable that any other metal will even approach iron or steel in importance in our generation. Copper, lead and zinc come fairly close together in tonnage, but we think of copper as being next in importance because it is higher-priced.

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The Touring Airplane and the Variable Camber Wing

The demand for better service, or more usable qualities in airplanes is causing considerable thought on the part of many persons now engaged in the aviation industry.. It presents to the designer and manufacturer a problem and to the inventor an opportunity or at least a hearing.

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Automotive Engineering Standardization and Progress

Standardization is the codification of the best consensus of opinion as to what should be specified for those items of materials and dimensions which it is clear can be reduced advantageously to common practice. The purpose is, of course, to improve the conditions of manufacture and operation.

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Gordon Bennett Entry of the U. S. Air Service

The U. S. Air Service in its entry in the Gordon Bennett International Airplane Race of 1920 may be said to be more truly represented than possibly any other competitor. This is because the Army of the United States traditionally represents the country as no other organiztion can, and the machine entered by the Army Air Service is truly an Army airplane, designed first of all as a “chasse” ’plane for war purposes, by a member of the Air Service.
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Power Required to Drive Aeronautic Engine Magnetos and Generators

The object of this test was to determine the power required to drive various types of aviation engine magnetos and generators. Conclusions It was found that the power required to drive aviation-engine magnetos was too small a quantity to be measured with the equipment available.
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The Federated American Engineering Societies

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Amphibian Development

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The Lacoin-Damblane Helicopter

September 151920 October 151920