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Wing Vibration Problems in Hovering Auto-Stabilised VTOL Aircraft

Published online by Cambridge University Press:  04 July 2016

C. L. Kirk  and
A. J. Pitt
C. L. Kirk
Affiliation:
The Department of Aircraft Design, The College of Aeronautics, Cranfield
A. J. Pitt
Affiliation:
Royal Air Force
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Extract

A VTOL aircraft which is in a state of hovering flight possesses no inherent stability of its own, consequently it may be found necessary to introduce some artificial form of control of the aircraft in both rolling and pitching motion. Such a control device may consist of an auto-stabiliser which enables the pilot to maintain the aircraft in a state of stationary hover, or to perform some manoeuvre by rolling or pitching the aircraft. This paper investigates the wing vibration problems associated with the roll attitude control of a transport aircraft in which the jet-lift engines are mounted in pods situated on the wings. Fig. 1 illustrates diagrammatically a typical transport aircraft configuration in which there are sixteen jet-lift engines mounted in two pods, one on either wing, each pod containing eight lift-engines.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 73 , Issue 707 , November 1969 , pp. 965 - 974
Copyright
Copyright © Royal Aeronautical Society 1969 

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References

* This is equivalent to taking Laplace transforms with initial conditions