November 8, 1920

November 8, 1920

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German Wind Tunnels and Apparatus

By Edward P. Warner20 min

A Figure of Merit for Airplanes

By Donald W. McIlhiney12 min

The Study of a Steam Turbine for Airplanes

By Luigi Acampora7 min

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More Features
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German Wind Tunnels and Apparatus

It is appropriate that any discussion of aerodynamical work in Germany should begin with Goettingen and with Prof. Prandtl, where the first serious work of the kind was undertaken, before the war, and where the most extensive and interesting results have been obtained both in respect of wind tunnel testing and of purely mathematical investigations.

By Edward P. Warner20 min

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A Figure of Merit for Airplanes

Since the armistice several excellent commercial airplane designs have appeared. These machines have widely different characteristics. It would be of value to be able to rate them according to some established and understandable standard.

By Donald W. McIlhiney12 min

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The Study of a Steam Turbine for Airplanes

Navigation at very high elevations, where less air resistance is encountered, and where the air is free from atmospheric disturbances, is one of the most interesting problems of modern aviation, be it from a military viewpoint for the obvious advantages which it would present in case of war, or be it from a purely commercial angle on account of the rapidity with which long distnnee communication could be realized.

By Luigi Acampora7 min

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The Lafayette Flying Corps-An Epic of the Air

It is in fact an epic of Homeric proportions that Captain Hall and Lieutenant Nordhoff have compiled to preserve in enduring form the history of the Lafayette Flying Corps. In two beautifully printed volumes* filled with interesting and well reproduced illustrations is set forth a brief resume of the history of Squadron N. 124, later Spad 124 of the French Army, and finally the 103d Aero Squadron U. S. Army as well as a short account of the other American pilots who joined the French service before the entry of the United States into the war and served in 66 pursuit and 27 observation or bombardment squadrons of the French army flying over every kilometer of the long line of battle that for four years stretched from Switzerland to the sea.

By Philip J. Roosevelt6 min

264265

Report of Canadian Air Board

Progress Report No. 2, covering activities of the Canadian Air Board for period, Aug. 1 to 31, is one of unusual interest. Of the matters considered, especially noteworthy are the following: Reports of recent flight operations; of the Associate Air Research Committee; on air navigation instructions for commercial fliers, and the application of air regulations to civilians; on forest survey; and on aviation insurance.
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Recruiting Skilled Mechanics

With the Reorganization Act of June 4, 1920, the Air Service became definitely a part of the line of the Army. As such it was authorized a total of 16,000 enlisted men. This increase in authorized strength creates a number of vacancies in the Air Service.

By Major General Charles T. Menoher5 min

264265

Presentation of the Gordon Bennett Trophy

Over twenty members and guests of the Aero Club of America attended the dinner and presentation of the Gordon Bennett Trophy which took place at the club house, 11 East 38 street, New York, on Monday evening, November 1. The occasion was the formal presentation of the Gordon Bennett balloon trophy to this year’s winner, Lieut. Ernest Demuyter the pilot of the Belgian balloon Belgica.
252253

Editorials

Belgium Takes Gordon Bennett Balloon Trophy THE winning of the Gordon Bennett Cup by the Belgian balloon Belgica marks the first victory of that nation in this historic contest. Lieut. Ernest Demuyter and his aide, M. Labrisse, passed through several very severe atmospheric disturbances and in addition were handicapped by lack of knowledge of the geography of this country.
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The Skylark

The two-passenger, side-by-side seater Linderman biplane was given its first test flight on October 14, from Gernard’s Farm eight miles from Bethlehem, Pa. The machine is a design of Garrett B. Linderman, a Lehigh graduate and a resident of Bethlehem.
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Aerial Photography a Growing Industry

As happened in the practical application of many other valuable inventions, aerial photography, which had remained dormant, though quite well known for so many years, waited but for the war to come into its own. Needing but the occasion to give it power and purpose, it sprang into sudden and conspicuous usefulness, and now, with the ever-increasing development of the airplane, its logical and closely related industry, aerial photography extends itself inevitably into broader channels.
November 11920 NOVEMBER 151920