DRAG REDUCTION OBTAINED BY MODIFYING A STANDARD TRUCK

A standard two-axle truck with a box-shaped cargo compartment was tested to determine whether significant reductions in aerodynamic drag could be obtained by modifying the front of the cargo compartment. The coastdown method was used to determine the total drag of the baseline vehicle, which had a square-cornered cargo box, and of several modified configurations. Test velocities ranged from 56.3 to 94.6 kilometers per hour (35 to 60 miles per hour). At 88.5 kilometers per hour (55 miles per hour), the aerodynamic drag reductions obtained with the modified configurations ranged from 8 to 30 percent.

  • Corporate Authors:

    National Aeronautics and Space Administration

    Flight Research Center
    Edwards AFB, CA  USA  93523
  • Authors:
    • Sheridan, A E
    • Grier, S J
  • Publication Date: 1978-2

Media Info

  • Pagination: 28 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00180485
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-TM-72846
  • Files: TRIS
  • Created Date: Aug 19 1978 12:00AM