Development of Race Car Testing at the Langley Full-Scale Tunnel

Paper #:
  • 983040

Published:
  • 1998-11-16
Citation:
Landman, D. and Britcher, C., "Development of Race Car Testing at the Langley Full-Scale Tunnel," SAE Technical Paper 983040, 1998, https://doi.org/10.4271/983040.
Pages:
9
Abstract:
This paper reviews the development of a new test capability for race cars at the Langley Full-Scale Tunnel. The existing external force balance of the Langley Full-Scale Tunnel, designed for use with full-scale aircraft, was reconfigured for automobile testing. Details of structural modifications relevant to supporting cars and force measurements are shown. A specialized automobile force balance, measuring vehicle drag and individual wheel downforce, was then designed, constructed and calibrated. The design was governed by simplicity and low cost and was tailored to the stock car racing community. The balance became fully operational in early 1998. The overall layout of the automobile balance and comparisons to reference data from another full-scale wind tunnel is presented.
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