Photogrammetric technique using entrained balloons for in-flight ranging of trailing vortices
By: Walter L. Snow, Alpheus W. Burner, and William K. Goad.
Contributors: Burner, Alpheus W.; Goad, William K.; Langley Research Center.
Series: NASA technical memorandum -- 4129.
Publisher: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division; For sale by the National Technical Information Service
Published: 1989
Place of publication: Washington, D.C; Springfield, Va
Language: eng
Format: Microform
Number of pages: 20
Subjects: Vortex-motion -- Measurement -- Equipment and supplies.; Wakes (Aerodynamics) -- Measurement -- Equipment and supplies.; Photogrammetry.; Balloons.
Notes: "October 1989."--Cover.

Research performed at Langley Research Center.

Includes bibliographical references (p. 10).

Microfiche. [Washington, D.C. : G.P.O.], 1992. 1 microfiche.