March 30, 1925

March 30, 1925

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The N. A. A. National Air Policy

By GODFREY L. CABOT11 min

Stability and Controllability of Airplanes

By B. V. KORVIN-KROUKOVSKY11 min

New Air Balance and Small Wind Tunnel

By ALBERT MERRILL7 min

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The N. A. A. National Air Policy

The following statement issued by Godfrey L. Cabot, President of the National Aeronautic Association is of extreme importance as it commits the membership of the Association to a very definite policy. It is the first announcement of policy that has been issued this year and therefore represents the views of the present executives who have undoubtedly sounded out the membership before making such an important statement Summarizing, the policy of the N.A.A. can be stated briefly as follows : It urges the passage of the Winslow Bill.

By GODFREY L. CABOT11 min

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Stability and Controllability of Airplanes

Appendix I—Method of Calculation

By B. V. KORVIN-KROUKOVSKY11 min

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New Air Balance and Small Wind Tunnel

Before describing this balance I would like to tell a little history about my connection with aeronautical research : There are two types of balance in common use. They are the N.P.L., and the Hanging Wire balance. The N.P.L. balance is very old and was used first by S. P. Langley of the Smithsonian Institute in the early nineties of the last century.

By ALBERT MERRILL7 min

342343

The Aerial Mercury Air Mail Plane

Description of New Plane With Many Unique Features, Specially Designed for Mail Service

By NORMAN MEADOWCROFT7 min

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Curtiss Financial Statement

356357
UNITED STATES AIR FORCES

U. S. ARMY AIR SERVICE

354355
AIRPORTS AND AIRWAYS

Long Island News

358359

Publisher’s News Letter

Rubber battleships—yes it was proposed seriously by a well informed friend who visited our office recently. We were told that if the navies of the world were to protect their battleships from aircraft bombs that some such change would have to be made.

By L.D.G.3 min

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Editorials

Amateur versus Professional Pilots

348349

Government Competition with Commercial Companies

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