Drag reduction obtained by modifying a standard truck
Arthur E. Sheridan, Steven J. Grier, United States. National Aeronautics and Space Administration. Scientific and Technical Information Office
National Aeronautics and Space Administration, Scientific and Technical Information Office, 1978 - Transportation - 25 pages
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88.5 kilometers 94.6 kilometers aerodynamic drag reduction Aeronautics and Space ambient temperature baseline configuration baseline vehicle box-shaped cargo compartment Box-Shaped Ground Vehicle brake drums cargo compartment width coastdown method configuration with rounded Drag Reduction Obtained drag reduction provided drag with vehicle Dryden Flight Research dynamic pressure fifth wheel Figure 11 Flight Research Center forward top edge hour 55 miles inertial thrust kilograms kilometers per hour km/h Figure low velocities mechanical drag mi/h miles per hour MODIFYING A STANDARD motor home NASA TM National Aeronautics Obtained by Modifying Performing Organization provided by rounding radius of curvature ranged from 56.3 reduction in aerodynamic reference rounded edges rounding the forward runway Saltzman Sheridan and Steven side edges speedometer spring scale Standard Truck Arthur stopwatches temperature correction test run TEST VEHICLE Test velocities ranged top and side total drag data Tuft Patterns vane in various vehicle velocity velocity interval Wind speed