Wind-Tunnel Investigation of 20-Percent-Chord Plain and Frise Ailerons on an NACA 23012 Airfoil

Abstract

Static rolling, yawing, and hinge moments were determined for several angles of attack on an airfoil. Conditions under which the aileron oscillation occurred were also determined. Oscillation of the Frise aileron was the result of abrupt flow breakaway at the lower surface of the aileron nose. Aileron-control characteristics were computed and results are presented illustrating the effects of variation of aileron floating tendency and differential linkage. Internally balanced sealed ailerons with larger amounts of balance than the ailerons which were tested are considered promising.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1941
Accession Number
ADA801374

Entities

People

  • F. M. Rogallo
  • Paul E. Purser

Organizations

  • National Advisory Committee for Aeronautics

Tags

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aeronautical Laboratories
  • Aircrafts
  • Airplanes
  • Coefficients
  • Control Surfaces
  • Deflection
  • Dynamic Pressure
  • Fighter Aircraft
  • High Angles
  • Oscillation
  • Rubber Seals
  • Surfaces
  • Test Sets
  • Trailing Edges
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Aerodynamics/Aeronautics.