Elevator Stick Forces in Spins as Computed from Wind-Tunnel Measurements

Abstract

Data from wind-tunnel measurements of elevator hinge-moment coefficients at high angles of attack are utilized in estimating elevator stick forces in spins. The analysis indicates that elevator forces on several current airplanes will be so high that the pilot will be unable to push the stick to the neutral position. Large nose balances involve danger of the elevator locking in the full-up position. Trimming tabs can be used to reduce the elevator stick force. Stick forces will be greater in steep spins than in flat spins.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1942
Accession Number
ADA801375

Entities

People

  • J. W. Klinar
  • Oscar Seidman

Organizations

  • National Advisory Committee for Aeronautics

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Forces
  • Aeronautical Laboratories
  • Aeronautics
  • Aircrafts
  • Airplanes
  • Altitude
  • Aspect Ratio
  • Coefficients
  • Control Surfaces
  • Control Systems
  • Deflection
  • High Angles
  • Horizontal Stabilizers
  • Measurement
  • Surfaces
  • Trailing Edges
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Computational Modeling and Simulation
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.