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Some Measured and Calculated Effects of Runway Unevenness on a Supersonic Transport Aircraft

Published online by Cambridge University Press:  04 July 2016

C. G. B. Mitchell
C. G. B. Mitchell*
Affiliation:
Formerly Structures Dept, now Transport Research Assessment Group, RAE Farnborough
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Extract

Theoretical studies of the response of supersonic transport aircraft (SST) taxying and taking-off on uneven runways showed several years ago that the vertical acceleration in the cockpit of an SST of typical configuration would be greater than that in a subsonic transport on the same runway. The vibration would occur mainly at the frequency of bending of the fuselage, which might be 2 Hz, and would be forced by long, shallow undulations of the runway. These might have wavelengths of 50 ft to 300 ft (15 m to 90 m) and amplitudes of 1½ in to 4 in (0·04 m to 0·10 m) peak-to-peak, and are so unlike the usual concept of a rough surface that a different term, unevenness, is used to describe them.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 75 , Issue 725 , May 1971 , pp. 339 - 343
Copyright
Copyright © Royal Aeronautical Society 1971 

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References

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