December 1, 1946

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Special Articles

Transport-cost Precision Via P-s-d Approach

Finding it impossible to get true analyses of aircraft economics with "job lot" per hour, per mile, and per-ton-mile measures, the author details how power-space-density denominators may be adopted to obtain efficient—and more profitable—operations accounting.

By A CANADIAN BUSH PILOT20 min

Regular Features

What's New in Products and Practices

. . . Key facts on the latest devices and equipment, tools and materials, product-and-practice literature. For additional data on any item, or copies of literature, simply fill in handy form (page 17), clip it to your letterhead, and mail to AVIATION Reader's Service. There is no cost, no obligation.

Special Maintenance Feature Section

Inspection Procedures for Turbojets

For top reliability in maintenance of aircraft's new-era power plant, a detailed understanding of the exacting inspection methods are necessary. Here are basic concepts of jet plant trouble shooting and comprehensive A-to-Z check points for engine components.

By IRVING STONE12 min

Special Maintenance Feature Section

Twa Improves Maintenance Through Better Tooling

TWA finds specialized equipment—both purchased in open market and designed in its own shops—pays off as new and more aircraft types are added to fleet.

By LEE SPRUILL9 min

The Aviation News

What From the 80th?—Ever since the Air Commerce Act was passed in 1926, aviation as an industry has been buffeted by political winds—but too few on the tail and too many head on. What the Republican 80th Congress starts doing next month to, and for, aviation can only be surmised at this time, but certain factors stand out to give trends.

Aviation Research—Engineering—Production

Static Stability Analysis for Flying Boats and Seaplanes

The important aspects of transverse metacenter and theorem of transference, together with derivation of the expression for distance from center of buoyancy to metacenter, are detailed in this initial installment of a comprehensive series.

By ERNEST G. STOUT8 min

Aviation Research—Engineering—Production

Design of German Supersonic Dm-1

These details of the development and flight test program for the DM-1 reveal how the Reich aimed to produce a plane which could pierce the supersonic barrier while also retaining efficiency at subsonic speeds.

By JAMES J. RODGERS7 min

Special Maintenance Feature Section

Slick Features Factory-type Maintenance

This contract carrier scoured nation to insure proper tooling as means of keeping big fleet of cargo carriers out of shops and in the air. Policy has paid off in high utilization.

By RUEL McDANIEL7 min

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Information Tips

ENGINEERING DATA Insulating Felt ..........................26 Containing technical data for working out felt requirements, Data Sheet No. 3, from American Felt Co., Glenville, Conn., describes “K” felt, a combination of kapok and other fibers designed for sound absorption and thermal insulation.

November 251946

December 21946

December 1, 1946

December 1, 1946