April 18, 1921

Cost of War Aviation Only $598,090,781

“Who’s Who in American Aeronautics”

European Developments in Helicopters

488489

Cost of War Aviation Only $598,090,781

Authenticated Official Report of Liquidation Division of U.S. Air Service on Total Appropriation Corrects Misconception of Air Service Expenditures and Shows that $382,364,781 Has Been Returned to U.S. Treasury
496497

“Who’s Who in American Aeronautics”

HUNSAKER, JEROME C., Commander, U.S. Navy; born, Creston, Iowa, 1886; son of Walter J. Hunsaker and Alma L. (Clark) Hunsaker. Educated: Detroit and Saginaw, Mich., public schools; U.S. Naval Academy; M.S., Eng. D., Mass. Inst, of Tech. Professional: 1904-1908 U.S. Naval Academy; 1908-1909 Midshipman at sea; 1909-1912, post graduate student of Naval Architecture, Mass.
492493

European Developments in Helicopters

The National Advisory Committee for Aeronautics has just issued its Technical Note No.47, which contains the first detailed account of recent European developments in helicopters. The Note deals with two different types of helicopters.
498499

Airplane Efficiency in Public Transportation

When considering aerial transport in relation to or in comparison with other forms of transport it is useful to consider in the first place of what efficiency in transport consists. We find that the most efficient form of transport is a combination of the following qualities:—(1) Speed, combined with a capacity for covering distance.

502503

Dopes and Protective Coverings

The following data are issued in order to give those concerned a general idea of the various dopes and instructions for applying them to fabrics: Descriptive Dope is a somewhat viscous solution of cellulose nitrate or cellulose acetate. In both cellulose acetate and cellulose nitrate dope the constitutents may be grouped into four classes.
506507

The Need of a Bureau of Naval Aeronautics

Experience since the War has proved that Naval Aviation is so important to the Navy, that it will constantly expand and its problems will constantly increase, and, in fact, already have increased to a point where the present organization in the Department for handling aeronautical matters is inadequate for the duties imposed.
506507

Air Service Engineering School

Minimum Requirements for Admission
504505

Aerial Activity in Japan

194495

National Southern Air Tournament

508509

California Aero News

April 111921 April 251921