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Automatic Stabilisation of Helicopters

Published online by Cambridge University Press:  26 October 2023

G J Sissingh

Extract

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Mr Chairman, Ladies and Gentlemen,

It is a pleasure to introduce our lecturer this afternoon Although as a fellow-member he has remained modestly in the background until now, DR SISSINGH is known internationally as a leading aerodynamicist in the rotary-wing field

Perhaps his first notable contribution was a paper published in “Luftfahrtforschung” exactly 10 years ago, this was later translated into English and became an N A C A Technical Memorandum In his calculations DR SISSINGH was not content with a rough estimate of the average values of drag coefficient and induced velocity but took into account their distribution along the blade This unwillingness to make empirical assumptions merely for the sake of mathematical simplicity is typical of his subsequent work

For a number of years DR SISSINGH has devoted his attention to helicopter stability and has written extensively on this important problem His investigations were conducted first at the Flettner Company near Berlin, then at the well-known Kaiser Wilhelm Institut at Gottingen, and recently at the Royal Aircraft Establishment

Type
Research Article
Information
The Journal of the Helicopter Association of Great Britain , Volume 2 , Issue 3: Oct-Nov-Dec 1948 , December 1948 , pp. 4 - 26
Copyright
Copyright © Royal Aeronautical Society 1948

Footnotes

*

Crown Copyright reserved Reproduced with the permission of the Controller of His Majestys Stationery Office

References

Kelley, B Helicopter stability with Young’s lifting rotor SAE Journal (Transactions) December, 1945, 685–690CrossRefGoogle Scholar
Stuart, J The helicopter control rotor Institute of the Aeronautical Sciences, Preprint No 110, 1948Google Scholar
Sissingh, G J Investigations on the automatic stabilisation of the helicopter (Hovering Flight), Part I RAE Report No Aero 2277, 1948Google Scholar