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Controlled (h/d) Let-down using Barometric Height and Radar Distance

Published online by Cambridge University Press:  18 January 2010

J. G. Downes
J. G. Downes
Affiliation:
(Division of Radiophjsics, C.S.I.R, Australia)
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Extract

The method described provides glide-paths for climbing and descending aircraft by combining in a single instrument information from the barometric altimeter and radar distance measuring equipment. Preliminary flight tests have shown that the method provides a smooth path along which an aircraft can be flown within close limits, and is one that appears sufficiently promising to justify further development.

Height separation has for years been a fundamental concept in the control of air traffic. It is the basic method of preventing collision during en-route navigation and in some holding procedures. The main reason for this is that a suitable instrument already exists in the form of the barometric altimeter, aninstrument which is intrinsically more accurate and reliable than any of the usual navigational aids.

Type
Research Article
Information
The Journal of Navigation , Volume 2 , Issue 1 , January 1949 , pp. 43 - 48
Copyright
Copyright © The Royal Institute of Navigation 1949

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References

REFERENCES

1Pritchard, H. C., J. Roy. Aero. Soc., 50, 1946, 935–73.CrossRefGoogle Scholar
2Burgmann, V. D. A paper submitted to the I.E.E.Google Scholar