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Helicopter Noise

Published online by Cambridge University Press:  04 July 2016

I. M. Davidson  and
T. J. Harcest
I. M. Davidson
Affiliation:
National Cas Turbine Establishment
T. J. Harcest
Affiliation:
National Cas Turbine Establishment
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Extract

Nowhere in the literature of helicopter noise can one find a general understanding; only isolated, inconsistent, and often inadequately documented facts. These could, of course, be reviewed but hardly with profit; it is easier to ask critical questions of nature than of previous investigators.

For fundamental reasons the helicopter in its present state of development is not in fact matched to the bulk, low-cost transport of passengers. But for equally good reasons the phenomena of aerodynamically generated noise now bid fair to banish from inhabited localities all other forms of vertical take-off and landing aircraft so that, if a city-centre to city-centre aircraft transport system is ever to be practicable, it will most probably be based on some metamorphosis of the helicopter.

Type
Research Article
Information
The Aeronautical Journal , Volume 69 , Issue 653 , May 1965 , pp. 325 - 336
Copyright
Copyright © Royal Aeronautical Society 1965

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