March 12, 1928

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Methods of Standardized All-Metal Float Construction

DURALUMIN has long been recognized as one of the best materials for aircraft, especially for seaplanes and flying boats, but its wide-spread use has been held back by the high cost of manufacture. The cost has lain not so much in the high price of the raw material as in the development of tools and manufacturing methods which were suitable to light alloys.

By KENNETH D. VOSLER13 min

668

Side Slips

A short time ago there was an announcement in the newspapers that there had been invented a device whereby persons speaking over the telephone could see each other. Judging by the following story, which comes to us from Mr. B. of the Department of Commerce, the telephone company may be trying this out on us secretly, and some sort of an investigation might be in order.

By ROBERT R. OSBORN3 min

676

UNITED STATES AIR FORCES

The first of more than a score of the latest type of bombardment planes, ordered by the Government for the Army Air Corps, recently landed at Bolling Field on its way to Dayton, 0. The plane is being piloted by Lieut. Edwin R. McReynolds. The “Pirate”, as it is named, is a veritable flying fortress.

March 51928

March 191928

March 12, 1928

March 12, 1928

Stress Analysis of Commercial Aircraft

By ALEXANDER KLEMIN15 min