Drag reduction of trucks with S3 airvanes.

Author(s)
Kirsh, J.W.
Year
Abstract

A 1/20 scale wind tunnel program and road test utilizing small and heavy duty trucks were performed to evaluate the effectiveness to the S3 Airvanes in reducing air drag and improving energy efficiency of cargo vehicles. A 38 percent drag reduction was obtained in the tunnel test and it was found that the optimum location of the airvanes could be qualitatively determined from model tuft studies. An 8000-mile freeway test program utilizing the S3 air vane configurations demonstrated increases in fuel economy from 9.2 to 26.5 percent.

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Publication

Library number
B 16384 fo /91/ IRRD 223578
Source

In: Proceedings of the 2nd Symposium of the American Institute of Aeronautics on Astronauties of Sports an Competition Automobiles, Los Angeles, May 11, 1974, p. 251-163, fig., grph., tab., ref.

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