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Helicopters—the changing scene

Published online by Cambridge University Press:  04 July 2016

J. P. Jones
J. P. Jones*
Affiliation:
Westlands Helicopter Ltd.
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Extract

If I may I will begin with a few words of explanation and apology. It is always difficult to talk about helicopters to an audience not familiar with their peculiarities and it is doubly difficult to do so in a Memorial Lecture. For, although the helicopter industry has and has had its great men, they are few in number compared to those who made their names in the traditional field and it is not easy to find a direct connection. Indeed it is not unknown for the leaders of the fixed wing industry to be violently opposed to the helicopter in any shape or form. Fortunately I have not been able to discover such antagonism on the part of J. D. North; equally I have been unable to find that he was a supporter of the helicopter. Therefore I cannot begin in the traditional manner of a Memorial Lecturer by showing some sketch or brief excerpt written by him which will illuminate precisely the points it will take me ten pages to say. But I have been made very conscious of North's abilities and hope to pay some respect to him indirectly by laying emphasis on helicopter control.

Type
Research Article
Information
The Aeronautical Journal , Volume 79 , Issue 772 , April 1975 , pp. 147 - 155
Copyright
Copyright © Royal Aeronautical Society 1975 

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References

1. Hubbard, H. H. and Lassiter, L. W. Sound from a two-blade propeller at supersonic tip speeds. NASA TR 1079, 1952.Google Scholar
2. Hawkings, D. L. and Lowson, M. V. Theory of open supersonic rotor noise. J Sound Vib (1974), 36(1), 1–20.Google Scholar
3. Lowson, M. V. and Jupe, R. J. Wave forms for a supersonic rotor. J Sound Vib (1974), 37(4), 475–489.Google Scholar
4. Lilley, G. M., Westley, R., Yates, A. H. and Busing, J. R. Some aspects of noise from supersonic aircraft. The Journal of RAeS Vol 57 June 1953.Google Scholar