August 1, 1920

August 1, 1920

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Naval Architecture in Aeronautics

By Jerome C. Hunsaker29 min

Dynamic Lift and Ceiling for Airships

By Alexander Klemin12 min

Variable Wing Area and Variable Camber

By H. B. Irving11 min

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1011

Naval Architecture in Aeronautics

As an American, I am pleased to have been asked to read the Wilbur Wright Lecture for this year, and for a moment to stand in the reflected glory of my eminent countryman. Wilbur and Orville Wright were the pioneers who blazed the trail, and made the first clearing in the wilderness.

By Jerome C. Hunsaker29 min

1617

Dynamic Lift and Ceiling for Airships

Dynamic Lift in a Typical Rigid Airship The model of the rigid airship R 23 in which tests were made is shown in Fig. 3. MAIN MODEL 1/133.4 DIMENSIONS. FULL SIZE. FULL SIZE. Total length. 48.15 in. 535 ft. Maximum diameter 4.73 in. 53 ft. Volume 0.436 cu. ft. 942,000 cu. ft.

By Alexander Klemin12 min

1819

Variable Wing Area and Variable Camber

The extremely rapid progress which the science of aeronautics has made during the last decade has led many to take it for granted that progress will be equally if not much more rapid in the near future. In the light of the present state of knowledge regarding aircraft the writer is of the opinion that the probabilities of the case do not, however, point in this direction.

By H. B. Irving11 min

2627

Tropical Exposure of Airship Fabric

In the middle of 1914 Commodore Sueter sent for test a strip of treble fabric, similar to that used on H. M. A. “Parseval,” one half of which had been doped with an aluminum dust composition, the other half being left yellow. This sample bad been exposed for a month to the weather at Berbera (Somaliland Protectorate).

By Guy Barr10 min

2021

Tests of Fireproof Airplane Dope and Equipment

Object To determine whether the fireproof airplane dope and the fireproof airplane equipment, consisting of a flying suit and gasoline tank, invented by Parker R. Bradley, of the Aircraft Fireproofing Corp., Nutley, New Jersey, are non-inflammable.
89

Editorials

SO much is constantly said in English aeronautical publications about the supposedly advanced position British aircraft design holds in the aeronautical field and of the alleged immense superiority of British designed aircraft—one naturally following the other—that one cannot repress a distinct shock on beholding in a recent issue of a British contemporary the pictures of the aircraft exhibited at the Olympia Show.
2627

Disposition of Power Plants on Airships

In a broad sense, nearly all the structural problems of airship design are due directly or indirectly to the power plants. One of the greatest of these is concerned with the mere location of power units on a large airship. The difficulty is due to the following conditions:—

By R. H. Upson4 min

2425

Automatic Cinematograph for Aerial Surveying

During the last years of the Great War German aviators achieved some remarkable results in aerial mapping in connection with observation flights. This was made possible by the so-called Series Topograph, a cinematograph camera which on a roll of film automatically produces a series of views of the ground flown over.

By Alfred Gradenwitz4 min

2223

Book Review

ALL THE WORLD'S AIRCRAFT, 1919. Edited and compiled by C. G. Grey. With all the world’s aeroplanes, aero-engines and airships. Sampson Low, Marston & Co., London and Edinburgh. One who is not familiar with previous editions of this book will wonder at its imposing title, which however is justified to a surprising extent.
1415

Catalog of Steel Products

Bruntons, of Musselburgh, Scotland, a large British firm manufacturing a wide line of steel products, publishes a useful catalog of its aircraft specialities. The book consits of a number of loose leaves bound between stiff covers, in a way that permits obsolete material to be removed, and new inserted, thus making it easy to keep it up to date.
JULY 151920 AUGUST 151920