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The measurement of performance, stability and control characteristics of a high subsonic jet aircraft in non-steady flight conditions employing high accuracy instrumentation techniques

Published online by Cambridge University Press:  04 July 2016

J. A. Mulder*
Affiliation:
Department of Aerospace Engineering, Delft University of Technology

Extract

Aircraft lift and drag characteristics can be measured in flight by subtracting the components of engine net thrust along and perpendicular to airspeed from the corresponding components of the total aerodynamic force R.

In steady straight flight the flight path angle can easily be measured and consequently the components of R when aircraft weight is known. Measurements in steady-straight conditions, however, are time consuming and furthermore the resulting accuracies are limited due to unavoidable deviations from the nominal straight flight condition.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 1977 

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