Performance of NACA Eight-stage Axial-flow Compressor at Simulated Altitude

Performance of NACA Eight-stage Axial-flow Compressor at Simulated Altitude

Author: J. Austin King

Publisher:

Published: 1944

Total Pages: 30

ISBN-13:

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An investigation has been conducted by the NACA to determine the design-performance characteristics of the NACA eight-stage axial-flow compressor and the effect of altitude on the performance. The compressor was tested at simulated altitudes of 50,000; 36,000; and 27,000 feet at rotor speeds corresponding to compressor Mach numbers of 0.80, 0.85, 0.90, and 0.95 wit varying air flow at each speed.


Wartime Report

Wartime Report

Author: United States. National Advisory Committee for Aeronautics

Publisher:

Published: 1944

Total Pages: 334

ISBN-13:

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Charts of Pressure Rise Obtainable with Airfoil-type Axial-flow Cooling Fans

Charts of Pressure Rise Obtainable with Airfoil-type Axial-flow Cooling Fans

Author: A. Kahane

Publisher:

Published: 1947

Total Pages: 578

ISBN-13:

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Charts are presented to show the pressure rise that is obtainable in an engine-cooling installation with a typical airfoil-type propeller-speed fan. The charts cover fans of the stator-rotor, rotor-stator, and rotor alone configurations, with blades incorporating both the highly cambered 65-series blower-blade sections and the conventional low-cambered airfoil sections. The effects of operation of a geared fan with rotational speeds limited by compressibility considerations and the effects of initial rotational inflow are indicated. Use of the charts to predict the pressure rise obtainable with any fan of the types considered is illustrated in a sample calculation.


Making Jet Engines in World War II

Making Jet Engines in World War II

Author: Hermione Giffard

Publisher: University of Chicago Press

Published: 2016-10-10

Total Pages: 362

ISBN-13: 022638862X

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Our stories of industrial innovation tend to focus on individual initiative and breakthroughs. With Making Jet Enginesin World War II, Hermione Giffard uses the case of the development of jet engines to offer a different way of understanding technological innovation, revealing the complicated mix of factors that go into any decision to pursue an innovative, and therefore risky technology. Giffard compares the approaches of Britain, Germany, and the United States. Each approached jet engines in different ways because of its own war aims and industrial expertise. Germany, which produced more jet engines than the others, did so largely as replacements for more expensive piston engines. Britain, on the other hand, produced relatively few engines—but, by shifting emphasis to design rather than production, found itself at war's end holding an unrivaled range of designs. The US emphasis on development, meanwhile, built an institutional basis for postwar production. Taken together, Giffard's work makes a powerful case for a more nuanced understanding of technological innovation, one that takes into account the influence of the many organizational factors that play a part in the journey from idea to finished product.