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  • 1
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    Preliminary Evaluation of the Low-Speed Stability and Control Characteristics of the McDonnell XP-85 Airplane from Tests of an Unballasted 1/5-Scale Model in the Langley Free-Flight Tunnel (1947)
    In:  CASI
    Details
    Publication Date: 2019-07-11
    Description: At the request of the Air Material Command, Army Air Forces an investigation of the low-speed, power-off stability and control characteristics of the McDonnell XP-85 airplane is being conducted in the Langley free-flight tunnel. The XP-85 airplane is a jet propelled, parasite fighter with a 34 deg sweepback at the wing quarter chord. It was designed to be carried in a bomb bay of the B-36 air plane. The first portion of the investigation consists of a preliminary evaluation of the stability and control characteristics of the airplane from force and fight tests of an unballasted 1/5-scale model. The second portion of the investigation consists of test of a properly balasted 1/10-scale model which will include a study of the stability of the Xp-85 when attached to the trapeze for retraction into the B-36 bomb bay. The results of the preliminary test with the 1/5-scale model are presented herein. This portion fo the investigation included tests of the model with various center fin arrangements. Both the design nose flap and a stall control vane were investigated.
    Keywords: Aerodynamics
    Type: NACA-RM-L7C27
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    The Langley Wind Tunnel Enterprise (1998)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: After 4 years of existence, the Langley WTE is alive and growing. Significant improvements in the operation of wind tunnels have been demonstrated and substantial further improvements are expected when we are able to truly address and integrate all the processes affecting the wind tunnel testing cycle.
    Keywords: Research and Support Facilities (Air)
    Type: NASA/CR-1998-207800 , NAS 1.26:207800 , Supersonic Tunnel Association; Apr 26, 1998 - Apr 28, 1998; Brussels; Belgium
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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