Accession Number:

AD0274586

Title:

AERODYNAMIC CHARACTERISTICS IN PITCH OF SEVERAL RING-WING-BODY CONFIGURATIONS AT A MACH NUMBER OF 2.2

Descriptive Note:

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON DC

Personal Author(s):

Report Date:

1962-04-01

Pagination or Media Count:

26.0

Abstract:

An investigation was conducted in the Langley 4- by 4-foot supersonic pressure tunnel at a Mach number of 2.2 to determine the aerodynamic characteristics of several ring-wing--body configurations. This investigation included tests for the bodies alone and for the ring-wing--body combinations these tests were conducted through an angle-of-attack range from about -4 to 11 degrees. The data indicated that sizable reductions in body wave drag were obtained for the concaveafterbody configuration as a result of the favorable interference produced by the ring wing. However, a large percentage of the total drag was produced by the ring wing and struts, and thus the ring-wing configurations of these tests appear to offer no drag advantage over a conventional wing-body configuration. Of the three configurations tested, the half-ring wing in combination with a body having a parabolic afterbody had the lowest drag 0.35 and the highest maximum liftdrag ratio 4.9.

Subject Categories:

  • Aerodynamics
  • Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE