December 15, 1919

December 15, 1919

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Development of U. S. Naval Aviation

The Bureau of Standards Carburetor Test Plant

By Percival S. Tice16 min

The Caquot Type M Kite Balloon

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424425

Development of U. S. Naval Aviation

Although S. P. Langley had made the first scientific demonstrations of aeronautical principles in 1896 at Quantico, Va., and the Wrights at Kitty Hawk, N. C., in 1903, had made the first successful flight with a heavier-than-air machine carrying the pilot, and though from time to time several nations, principally European, had made extensive additional experiments, it was not until the early part of 1911 that the first practical naval aircraft operating from and over, and alighting upon the water, was invented.
438439

The Bureau of Standards Carburetor Test Plant

The Bureau of Standards carburetor testing plant was designed and built for the purpose of insuring greater precision and speed in observations of carburetor metering characteristics than are conveniently possible where the carburetor is in use on an engine.

By Percival S. Tice16 min

432433

The Caquot Type M Kite Balloon

Envelope.—The Caquot type M kite balloon (Fig. 1) has an elongated form with the greatest section about one-quarter the length from the bow. Its length is 82 ft. and greatest diameter 26 ft. 8 in. Its volume is about 32,840 cu. ft. The following openings are fitted in the envelope:
430431

The Watkins Foulnot Parachute

The Watkins Foulnot parachute constitutes a very valuable safety device for the airplane. It requires only three-fourths of one second for quick opening and has a rate of descent of 14 ft. per sec., as demonstrated at Atlantic City in May, 1919.

By Wm. F. Watkins8 min

428429

Effect of Envelope Pressure on Airships

The effect of envelope pressures in non-rigid airships pertains to a subject which is pretty closely connected with airship design in general, but there are many aspects of the question which should be carefully considered by any one having to do with airship operation.

By R. H. Upson7 min

436437

Navy Specifications for An Amphibian Plane

The Bureau of Construction and Repair, Navy Department, asks under schedule No. 5202 for bids, to be opened Jan. 2, 1920, on flying machines meeting the following specifications: General Requirements It is the intent of this schedule to secure proposals for the supply of two-place airplanes capable of use either as seaplanes or as land planes, complying so far as possible with all the requirements specified herein, to be built in accordance with Navy Department General Specifications for Airplanes No. 100-A, except as modified by these specifications.
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Engine Rules for Pilots

436437

Motor Fuels

By E. W. Dean4 min

432433

Development of An Aircraft Incidence Meter

To enable the air pilot to read at a glance the direction of flow of the air past his airship or airplane, a balanced weathervane, indicating promptly small changes of incidence, has been developed and tried under regular working conditions.

By A. D. Zahm2 min

438439

Security of Airplanes in Flying Over the Sea

December 11919 JANUARY 11920