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A method for determining the lift-to-dragratio of a propelled hang-glider

Published online by Cambridge University Press:  04 July 2016

J. Wolf
J. Wolf*
Affiliation:
Institute of Aviation Warsaw, Poland
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Abstract

A method of determination of the wing lift-to-dragratio of a propelled hang-glider in steady, levelflight is described. The method requires arelatively small number of flight parameters to bemeasured. These measurements have been reducedsuccessfully to the tilt angle of the propelling“trike”, i.e. a closed, wheeled, cabin hanging underthe wing, and to the force on the flying controlsonly. The recording of these parameters and actualflight speed and altitude is sufficient todetermine, after simple processing, the experimentalspeed and drag polars of the wing. The method isuseful, in particular, for flexible wing researchand development and allows quick aerodynamictests.

Information

Type
Research Article
Information
The Aeronautical Journal , Volume 100 , Issue 992 , February 1996 , pp. 60 - 64
Copyright
Copyright © Royal Aeronautical Society 1996 

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Footnotes

*

The work has been performed as a part of ResearchProject No. 9 0403 91 financed by the StateCommittee for Scientific Research of Poland.

References

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