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Atmospheric Turbulence on South African Air Routes

Published online by Cambridge University Press:  04 July 2016

E. C. Halliday  and
J. A. King
E. C. Halliday
Affiliation:
National Physical Research Laboratory, C.S.I.R., Pretoria, South Africa
J. A. King
Affiliation:
Formerly Weather Bureau, Pretoria, now with C.S.I.R.
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Extract

When South Africa joined the Commonwealth Advisory Aeronautical Research Council in 1948 it was decided that the study of atmospheric turbulence was the first research project which could be undertaken. Equipment for the recording of aircraft accelerations was not then available commercially so an apparatus was assembled in the laboratory of the National Physical Research Laboratory, use being made of a commercial sensing head and an oscillograph galvanometer with photographic recording. The apparatus weighed about fifteen pounds so it was used on Douglas DC-3 (Dakota) aircraft which were flying for the S. A. Air Force on routes from Pretoria, to Durban, Cape Town and return. This apparatus recorded altitude and vertical acceleration of the aircraft. At a later date a lightweight commercial instrument was purchased and fitted into a Douglas DC-4 (Skymaster) aircraft flying on the routes of S. A. Airways. This instrument recorded altitude, air speed, and vertical acceleration.

Type
Research Article
Information
The Aeronautical Journal , Volume 65 , Issue 601 , January 1961 , pp. 31 - 39
Copyright
Copyright © Royal Aeronautical Society 1961

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References

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