Flight Measurements to Determine the Effect of a Spring-Loaded Tab on the Longitudinal Stability of an Airplane

Abstract

Tests were made of a spring loaded tab, called a "springy" tab, installed on the elevator of an SB2C-1 scout-bomber. The tab was arranged to deflect upward with decrease in speed, causing an increase in pull force to trim at low speeds, and thereby increasing the stick-free static longitudinal stability of the airplane. Results show that the springy tab gave an increase in stick-free stability in all conditions and reduced the danger of inadvertent stalling.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1946
Accession Number
ADA801181

Entities

People

  • John Reeder
  • Paul A. Hunter

Organizations

  • Langley Research Center

Tags

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamics
  • Aeronautical Laboratories
  • Aeronautics
  • Aircrafts
  • Airplanes
  • Airspeed
  • Center Of Gravity
  • Climbing
  • Control Systems
  • Dynamic Pressure
  • Friction
  • Gravity
  • Measurement
  • Stalling
  • Static Pressure
  • Trim Tabs

Readers

  • Aerodynamics/Aeronautics.
  • Electrical Engineering