Wind-Tunnel Investigation of the Effects of Slot Shape and Flap Location on the Characteristics of a Low-Drag Airfoil Equipped with a 0.25-Chord Slotted Flap

Abstract

Tests were conducted at dynamic pressure of 50 lb per square foot with lift drag and pitch moment measurements throughout useful angle of attack range for constant flap deflection and position of a low-drag airfoil. Two slots were investigated and practical flap paths were selected for each Slot shape had a negligible effect on the maximum lift coefficient flap deflected, the rounded-entry slot had lower profile drag.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1944
Accession Number
ADA800644

Entities

People

  • Ralph W. Holtzclaw
  • Yale Weisman

Organizations

  • National Aeronautics and Space Administration

Tags

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aeronautical Laboratories
  • Aeronautics
  • Airfoils
  • Coefficients
  • Deflection
  • Drag
  • Dynamic Pressure
  • Low Drag
  • Low Drag Airfoils
  • Measurement
  • Navy
  • Pressure Distribution
  • Slotted Flaps
  • Surfaces
  • Wind Tunnels

Fields of Study

  • Agricultural and Food sciences
  • Physics

Readers

  • Aerodynamics/Aeronautics.