May 28, 1923

May 28, 1923

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Developing Equipment for Night Flying

Army and Navy Air News

British Air Ministry’s Helicopter Competition

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578579

Developing Equipment for Night Flying

How Landing Lights and High Intensity Searchlights are Solving the Problem
588589

Army and Navy Air News

Primary Flying Students Nearing Graduation—With only four more weeks ot instruction, the present class in the Primary Flying School at Brooks Field is rapidly completing its schedule, and it is expected that a big percentage of the class will finish with some time to spare.
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British Air Ministry’s Helicopter Competition

Prizes of 50,000 Pounds Offered
584585

The Passing of a Great Aeronautical Pioneer

Thomas Scott Baldwin is Dead

By Ladislas d'Orcy6 min

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Editorials

THE interest recently manifested in France and England regarding the airplane patent situation in the United States may forecast another attempt at “foreign invasion.” The original Wright patent expired on May 22. It will be recalled that in the Spring of 1920, both the French and the British had plans for marketing large quantities of their surplus war aviation equipment in this country, American manufacturers at that time prevented this “dumping” by injunctions based upon suits for patent infringement.
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Our World’s Records

The recent winning by American pilots of every important aviation record has created a considerable stir in French aeronautical circles as will be seen from the opinions expressed in various foreign aeronautical publications which are reproduced below.
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French Air Expansion in Africa

French air lines are once more enlarging their field of activity in Aprica. The Latécoère Air Line which operates a daily mail and passenger service from Toulouse, via Barcelona, Alicante, Malaga, Tangiers and Rabat to Casablanca, Morocco, last year inaugurated a similar sevice between Casablanca, Fez and Oran, thus connecting Morocco with Western Algeria.
582583

Airship to Fight Gypsy Moth

In the plant of Airships, Inc. at Hammondsport, N. Y. there was completed some time ago for the Army Air Service a small airship, known as the MB (motor balloon), which is equipped with two 75 hp. engines and is capable of carrying five passengers.
586587

Junior Branch, N.A.A.

The Junior Branch, National Aeronautic Association of U.S.A., was recently organized by boy students at the Episcopal Academy in Philadelphia, under the leadership of Alfred J. Ostheimer, 3rd. This little organization, the first of its kind in this country, is part of the general educational movement of the N.A.A. for juniors throughout the country where chapters are organized.
584585

Heat Conduction in Fins of Air-Cooled Engines

N.A.C.A. Report No. 158 by D. R. Harper 3d and W. B. Brown, deals with the problem of reducing actual geometrical area of fin-cooling surface, which is, of course, not uniform in temperature, to equivalent “cooling” area at one definite temperature, namely, that prevailing on the cylinder wall at the point of attachment of the fin.
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