Effect of Wing Modifications on the Longitudinal Stability of a Tailless All-Wing Airplane Model

Abstract

Force and tuft tests were made on a model in original condition with wing tips rotated for washout, with rectangular and swept-forward tips, and with various slat arrangements. Most promising modification were flight tested. Results indicated that changes in tip plan form or rotation of wing tips did not reduce instability at high lift coefficients. Addition of wing slats improved the longitudinal stability at the stall when slat extended far enough into area that stalled first.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1945
Accession Number
ADA800574

Entities

People

  • Charles L. Seacord Jr.
  • Herman O. Ankenbruck

Organizations

  • National Aeronautics and Space Administration

Tags

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aeronautical Laboratories
  • Aircrafts
  • Airfoils
  • Airframes
  • Airplanes
  • Center Of Gravity
  • Coefficients
  • Dynamic Pressure
  • Flight
  • Free Flight
  • High Angles
  • High Lift
  • Instability
  • Reynolds Number
  • Sweptforward Wings
  • Wing Tips

Readers

  • Aerodynamics/Aeronautics.