In Partnership With

February 1, 1918

Aerial Transport and Travel

The Technical History of the Airplane

The Design of Air Turbines

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Aerial Transport and Travel

There is talk today of aircraft for transport and travel. The carriage of goods, mails, and people, the exploration of remote districts, the conduct of photographic surveys, the searching out of valuable trees in pathless forests, the speedy conveyance of officials to their administrations in distant climes—these things and others are everywhere hopefully dwelt on by the imaginative among those engaged in air work.

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The Technical History of the Airplane

The history and development of mechanical flight may be confined almost entirely to the present century. In the last century some success had been achieved in gliding flight, model airplanes had been made and flown, and at least two man-carrying airplanes had actually left the ground, but it was not until the year 1903 that the Wright Bros., having ended a painstaking research in gliding flight, earned for themselves the honor of being the first men to fly.

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The Design of Air Turbines

While air turbines have occasionally been used to pump gasoline from the main tank to an auxiliary, when it could feed by gravity, they were chosen for such purposes purely by a method of trial and error, and air turbine design did not really become important enough to warrant an attempt to establish it on scientific principles until the greatly extended use of radio apparatus, searchlights, stabilizer servomotors, etc., during the last few years, has made absolutely necessary the provision of satisfactory means, independent of the engine, for generating considerable quantities of electrical power.

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Digest of the Foreign Aeronautical Press

The Aeroplane (London), December 26, 1917 Royal Aircraft Factory Test Report on 230 Horsepower Benz Engine.—The Royal Aircraft publishes the following test report on the 230 hp. Benz engine (the salient features of which were summarized in the preceding issue of AVIATION AND AERONAUTICAL ENGINEERING).
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Accessory Manufacturers Meet at Dayton

Business men do not usually expect to be entertained individually or in a body by large companies whose business they are soliciting. Nor do they expect to be taken through a large airplane plant and shown all the vital manufacturing processes.
4041

News of the Fortnight

Surveyor General of Supplies Appointed The Secretary of War announced on Jan. 25 the appointment of Mr. Edward M. Stettinius to the post of Surveyor General of Supplies in the office of the Director of Purcliases. The latter office wasc created by General Orders No. 5, of the War Department, dated Jan. 11, Col. Palmer E. Pierce of the General Staff of the Army being appointed Director of Purchases and detailed as an assistant to the Chief of Staff.
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Seaplane Float Construction

Step Construction.—After the topside planking is complete the float is loosened from the mold, lifted off, turned completely over, and is set up on a padded mold for the completion of the step and bottom planking. The step floor is built very stout, and is rabbeted to take the stern bottom planking, and the inner skin of the bow bottom planking, the outer skin running to the after edge, or it may also be rabbeted in with the inner skin.

3637

International Aircraft Standards

3S34—Specifications for Heat-Treated Alloy Steel Forgings and Stampings (130,000 Pounds per Square Inch Tensile Strength.) General.—1. The general specifications, 1G1, shall form, according to their applicability, a part of these specifications.
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The Continental Pusher Biplane

An interesting type of pusher biplane has recently been produced by the Continental Aircraft Corp., of New York City, to the designs of Louis L. Kaess and Vincent Buranelli. To date, the machine has been in the air for over forty hours and has furnished an all-round satisfactory performance.
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Book Review

January 151918 February 151918