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Precision Hovering by Light Helicopters at Moderate Altitudes

Published online by Cambridge University Press:  04 July 2016

B. A. Clark  and
K. A. Gross
B. A. Clark
Affiliation:
Defence Standards Laboratories, Maribyrnong, Victoria, Australia
K. A. Gross
Affiliation:
Defence Standards Laboratories, Maribyrnong, Victoria, Australia
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Summary

Using television as an instrumental aid, light helicopters can be hovered with considerable accuracy above a known ground point at altitudes of the order of a thousand metres above ground level. The image from a vertically-aimed ground-based television camera is transmitted to the helicopter and displayed on a receiver placed in front of the pilot, who uses the image of the helicopter for guidance to the hover point. With this system, the hover point has been maintained within ±1.2 m (4 feet) for periods of up to 2.5 minutes at 1200 m (4000 feet) above ground level.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 71 , Issue 683 , December 1967 , pp. 791
Copyright
Copyright © Royal Aeronautical Society 1967

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References

1.Buckmaster, J. L., Loving, H. B. and Dando, T. O. Geological Survey Professional Paper 450-E, pp 133-135, 1962.Google Scholar
2.Hillier, J. Private Communication, 1966.Google Scholar