July 2, 1946

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Aviation Research—Engineering—Production

PRACTICAL ENGINEERING OF ROTARY WING AIRCRAFT

In this first of a comprehensive series of analyses concerned with problems of rotorcraft design, the author presents details of fundamental knowledge gained from the development of the autogiro, outlines principles employed in successful 'copters, offers predictions bearing on future developments, and finally discusses important aspects of loads developed in hub-driven helicopter blades.

By PAUL H. STANLEY35 min

MAN VS ATOM - YEAR 1

WHEREIN WE SIGNALIZE THE FIRST ANNIVERSARY OF THE ATOMIC AGE, CONSIDER THE ALTERNATIVES INHERENT IN BOTH GOOD AND EVIL POTENTIALITIES OF NUCLEAR FISSION, THEN VENTURE A GLIMPSE INTO THE FUTURE

SOLDIER BEWARE

SO YOU ROLLED UP 1,400 hr. flying B-29s, and now that you’re out of uniform you want to get into civilian aviation, with a job as an airline pilot or well-paid executive. Or maybe you helped build one of those American airports now dotting the landscape of the world, and with savings and discharge pay you think you have enough money to start an airport of your own.

By KENNETH R. MacDONALD17 min

Aviation Research—Engineering—Production

AIRCRAFT ACOUSTICAL PROBLEMS AND POSSIBLE SOLUTIONS

Here is a new approach to the age-old noise bugaboo, an approach which brings new tools for increasing passenger comfort and aircraft utility in the transport, military, and personal plane fields.

By K. R. JACKMAN12 min

124

NEW PRODUCTS

KEEP POSTED ON Products and Practices

Retaining Rings ....................1 Catalog No. 4 from Waldes Kohinoor, Long Island City, N. Y., gives technical data, comparative material characteristics, critical dimensions, thrust loads, and impact tests of retaining rings.— AVIATION, July, ’46.

MAINTENANCE

War-Baby Flight School Becomes Focal Servicing Base

An AAF flight cadet school, basing 130 primary trainers, shut down after hostilities and seemed destined to become a "ghost airport". But then Operator Beverly Howard took a chance—and a lease—on the field's facilities and, utilizing wartime-learned maintenance lessons, is now enjoying an expanding business, using the field as a central base for his own operations and for servicing transients with supplies and repairs.

FIELD OPERATIONS

Keep That Overhead Under Your Thumb

Precise proportionment and allocation of common expenses will lay that solid working foundation needed for building the profit-healthy field operation. Author Parker tells how, illustrating the methods with practical, detailed tables—which you may use as a pattern for your own accounting.

By CHARLES A. PARKER.9 min

AVIATION SALES & SERVICE

Why Not Check Lists For Private Pilots?

Even the smallest planes require one or more operations in each of six phases for a successful flight . . . Here is a means of increasing long-range sales by promoting safety from the very beginning.

By WILLIS L. NYE8 min

128

NEW PRODUCTS

Shop Equipment & Materials

Self-Tapping Screw.................59 Combining thread cutting characteristics and coarse pitch of company’s other screws, new type “F-Z” self-tapping screw has been designed by Parker-Kalon Corp., New York City, for making fastenings to thin section and bosses in friable and brittle plastics.

104

Aviation Research—Engineering—Production

REVIEW OF PATENTS

Following are digests of some of the more interesting patents on aviation developments granted through the U. S. Patent Office. Mr. Brown will be happy to answer questions on patents for the reader. Address inquiries to him, care AVIATION, 330 West 42nd St., New York 18, N. Y.

By ELTON H. BROWN7 min

July 11946

July 81946

July 2, 1946

July 2, 1946