GROUND-BASED MEASUREMENTS OF THE WAKE VORTEX CHARACTERISTICS OF A B-747 AIRCRAFT IN VARIOUS CONFIGURATIONS

A Boeing 747 aircraft flew 54 passes at low altitude over ground-based sensors. Vortex velocities were measured by a laser Doppler velocimeter, an array of monostatic acoustic sounders, and an array of propeller anemometers. Flow visualization of the wake was achieved using smoke and balloon tracers and was recorded photographically. Data were obtained on vortex velocity fields, vortex decay, and the effects of spoilers and differential flap settings on the dissipation and structure of the vortices. (Author)

  • Supplemental Notes:
    • Prepared in cooperation with AeroVironment, Inc., Pasadena, CA, Lockheed Missiles and Space Co., Huntsville, AL. Huntsville Research and Engineering Center and National Aeronautics and Space Administration, Edwards CA. Dryden Flight Research Center.
  • Corporate Authors:

    Transportation Systems Center

    55 Broadway, Kendall Square
    Cambridge, MA  USA  02142

    Federal Aviation Administration

    Systems R&D Service, 800 Independence Avenue, SW
    ,   USA 
  • Authors:
    • Burnham, D C
    • Hallock, J N
    • Tombach, I H
    • Brashears, M R
    • Barber, M R
  • Publication Date: 1978-12

Media Info

  • Pagination: 583 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00197641
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FAA-RD-78-146 Final Rpt., TSC-FAA-78-28
  • Files: NTIS, TRIS, USDOT
  • Created Date: Sep 15 1980 12:00AM