February 28, 1921

February 28, 1921

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Flying Single and Twin Engined Airplanes

By Squadron-Leader R. M. Hill25 min

Two Years’ Work at McCook Field

An American Engine for Altitude Work

By Colonel Jesse G. Vincent9 min

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272273

Flying Single and Twin Engined Airplanes

I feel that the following notes may prove of some use, in view of the fact that considerable experience with multi-engined airplanes has been allowed to accumulate without it being definitely brought together and analyzed; and that the best way to deal with their flying qualities is to compare them with those of the single-engined type, on which most of us have been brought up.

By Squadron-Leader R. M. Hill25 min

262263

Two Years’ Work at McCook Field

The functions of the Engineering Division, Air Service, can be outlined as follows: To design, develop, and test all airplanes, airplane engines, accessories, and materials to meet the requirements of the Air Service; to prepare production drawings, specifications, and, where necessary, models of all aeronautical equipment for production; and to assist and supervise the experimental and production manufacture of all aeronautical equipment being designed and constructed for the Air Service by the aeronautical industry.
260261

An American Engine for Altitude Work

One of the first American airplane engines especially designed for work in high altitudes has recently been completed for the United States Army Air Service and is known as the Packard “1237”. Preliminary tests of this engine have been extremely satisfactory and indicate that its performance will considerably exceed the specifications laid down when the design was undertaken and will be particularly pleasing at the higher altitudes.

By Colonel Jesse G. Vincent9 min

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America’s First Model Airway

Prophecy of aeronautic progress in 1921 in the face of existing business conditions, would be idle, but what will prove to be a vital milestone in the progress and development of both commercial and military aeronautics will be the creation and establishment of America’s first model airway from Washington, D. C., to Dayton, Ohio, during the early months of 1921.
270271

The Klemin Amphibious Gear

The subject of providing a gear to permit airplanes to land on either sea or land has received a great deal of attention abroad and was the subject of a government competition last year. Very little work has been done in this country until recently.

By Donald W. MclIhiney4 min

272273

Air Bombing and Future Warfare

278279

Brief History of Launching Catapults

276277

England to Subsidize Air Transport

258259
EDITORIALS

Effect of Engine on Control

266267

Gathering Aircraft Data

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