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Some Aspects of Turboshaft Engine Installations in Multi-engined Helicopters*

Published online by Cambridge University Press:  04 July 2016

J. D. Sibley
J. D. Sibley*
Affiliation:
Bristol Siddeley Engines Ltd.
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Extract

In projecting future turboshaft engines for helicopter appUcations the engine designer is faced with the problem of selecting the size of engine to meet the likely size, configuration, performance and economic requirements of future helicopters. It is also desirable to meet as many different helicopter applications as possible with the same basic engine design. The helicopter designer is, likewise, faced with the problem of which engines could be available for the future and how they could best be tailored to his requirements. This is the perennial problem of the “chicken and the egg.”

This paper summarises the results of a preliminary study of the problem, based on some assumed airworthiness requirements and simple engine assumptions and, while it makes no claim to be a method in itself of assessing the problem, it does show the sort of trend which could be expected.

Type
Rotorcraft Section
Information
The Aeronautical Journal , Volume 68 , Issue 642 , June 1964 , pp. 391 - 398
Copyright
Copyright © Royal Aeronautical Society 1964

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Footnotes

*

The 29th Lecture to be given before the Rotorcraft Section of the Society—the second paper at the Half-Day Symposium held on 29th November 1963.

References

1.Scanlon, J. Flight Requirements for the Operation of Rotor- craft. Journal of the Royal Aeronautical Society, April 1963.CrossRefGoogle Scholar
2.Betteridge, W.The Extrapolation of the Stress-Rupture Properties of Nimonic Alloys. Journal of the Institute of Metals, Vol. LXXXVI, No. 1824, 1957-58.Google Scholar