May 30, 1921

May 30, 1921

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The Installment of An Airplane Engine

By A. J. Rowledge17 min

Lessons of the Gordon Bennett Race, 1920

By W. Margolis10 min

“Who’s Who in American Aeronautics”

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The Installment of An Airplane Engine

It has been remarked that more accidents occur due to installation than to engine failure. If this is true, the subject is one that is well worth careful consideration and discussion to see what we can do to eliminate the causes of trouble in view of our responsibilities to the flying public.

By A. J. Rowledge17 min

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Lessons of the Gordon Bennett Race, 1920

In this Paper I propose to give briefly the characteristics of all the airplanes built for this race, with some new details concerning the French machines; to study the airplanes from an aerodynamical point of view; and lastly, to say a few words on the regulations of future speed tests.

By W. Margolis10 min

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“Who’s Who in American Aeronautics”

Henry William Harms HARMS, HENRY WILLIAM. Major, Air Service; born, Wentworth, S. D., Nov. 25, 1887; son of Adolph Harms and Sophia Harms ; married, Enid Leslie, May 29, 1919. Educated : Wentworth Grammar School, 1902; Madison High School 1906; one year C. E. University of Minnesota, 1907; U. S. Military Academy, 1912; Aeronautical Engineering Course M. I. T., 1916-1917.
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Chemical Warfare in Future Wars

The Chemical Warfare Service has made plans for participation in the bombing experiments in June. Chemical warfare as now understood comprises the use of poison gas, smoke and incendiary material by all the combat branches of the army. Poison gas not only includes those gases which kill by inhalation, those which penetrate the skin and go to the brain centers, but those which remove soldiers from active participation in a battle by causing sneezing, vomiting or temporary irritation to his eyes.
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Official Report on Air Mail Service

Third Year of Operation, May 15, 1920 to May 15, 1921
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The Canadian Air Force

The report of the Air Board of Canada for 1920 contains interesting information on the organization of the Canadian Air Force. The Air Board was reorganized by Order in Council No. 826 dated Apr. 19, 1920. The original Board, having completed the preliminary work of organization for which it was appointed, resigned, and a new Board was appointed in its stead under the chairmanship of the Hon. Hugh Guthrie.
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Trade Notes

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Editorials

Helium for Aerostatic Purposes

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Aircraft Underwriters Confer

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The Sperry Commercial Monoplane Wing

May 231921 June 61921