THE MEASUREMENT OF THE DC-7 TRAILING VORTEX SYSTEM USING THE TOWER FLY-BY TECHNIQUE

The report describes the technique and presents the results of a series of full-scale flight tests performed at NAFEC in September 1971, in which the wing trailing vortices of the Douglas DC-7 airplane were investigated by flying the airplane at low altitude, upwind of, and in close proximity to a 140-foot instrumented tower. Tower instrumentation consisted of hot-film anemometers located at 4-foot intervals and wind velocity and direction sensors. Vortex air flow visualization was by use of colored smoke. The data consists of tangential velocity distribution plots, peak recorded velocity as a function of time, airplane configuration and wind; vortex vertical and lateral transport velocities, and specimen time histories of the velocities recorded at individual sensors. (Modified author abstract)

  • Corporate Authors:

    NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER

    ATLANTIC CITY, NJ  USA 
  • Authors:
    • Garodz, L J
    • Miller, N J
    • LAWRENCE, D
  • Publication Date: 1973-11

Media Info

  • Pagination: 382 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00051659
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FAA-NA-73-34 Final Rpt
  • Files: NTIS
  • Created Date: Mar 25 1974 12:00AM