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June 1, 1947

Regular Features

What's New in Products and Practices

Aviation Research—Engineering—Production

Practical Engineering of Rotary Wing Aircraft

Aviation Research—Engineering—Production

Super Altitude-research Rocket Revealed By Navy

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Regular Features

What's New in Products and Practices

Previously supplied with aluminum or steel grommet to hold stud, sheet metal fastener made by Lion Fastener, Inc., Honeoye Falls, N. Y., is now available with rubber grommet if desired. New grommet, especially adaptable where air or water seal is required, is applied without special tools, allowing quick replacement of one-piece forged stud for longer or shorter unit.
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Aviation Research—Engineering—Production

Practical Engineering of Rotary Wing Aircraft

Described are various methods and requirements for attachment of blade to hub to permit pitch change, blade flapping, and blade motion in plane of rotation. Included are illustrative examples and derivation of loads.

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Aviation Research—Engineering—Production

Super Altitude-research Rocket Revealed By Navy

First engineering study gives construction details of Martin-built Neptune, research missile being built to double ceilings reached by V-2s.

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Aviation Maintenance

Enterprising Service Has No Limits

Foreseeing the benefits of integrated aviation service and supply facilities, Pacific Airmotive sets a pattern for drawing on a wealth of trade—ranging from work for domestic and foreign major airlines to the individual plane owner.

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Aviation Research—Engineering—Production

Explosion-proof Electric Units Seen "Must" for Future Craft

Here are design considerations, backed by extensive test results, on equipment projected to bring greater commercial flying safety without major weight-space requirements.

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Aviation Research—Engineering—Production

Thermodynamic Factors in Turbine-aircraft Design

Outlining vital cooling and ducting problems confronting the thermodynamicist in advanced power plant installations, Author Whitney goes on to present a succinct method of approach for their solution.

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Aviation Research—Engineering—Production

Morphology and Nomenclature of Jet Engines

One of the top authorities in the field presents a convincing case for adopting a formal system of classifying reaction power plants— as an aid to engineers and in the interests of intellectual and material economy.

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Special Articles

Why South Africa Rates A-1 for Export

AIRMINDED SOUTH AFRICA presents one of the brightest spots, for the United States, in the personal plane export picture. That sounds like a pretty broad statement, doesn’t it? But we can back it up with many facts and figures from all the market angles, as well as through the sound judgment of some of our most experienced foreign traders, both in and out of the aircraft field.

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Aviation Research—Engineering—Production

Underwing Fueling and How It Was Engineered

Realistically weighing design obstacles and operator-posed objections which this improved fueling system had to surmount, Manager Olsen reveals development of the efficient servicing method, and details characteristics of its vital components.

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Special Articles

How Many Fares Make a Profit?

"When load becomes payload" can be exactly determined through use of the scrupulous power-space-density analysis... And whether the rate charged the passenger is "right" is also thus revealed, as well as the precise dollars-and-cents status of the cargo compartment.

May 11947 July 71947