A Study of Longitudinal Controllability and Stability Requirements for Small General Aviation Airplanes.

Abstract

Several aspects of small airplane longitudinal stability and control were examined by means of analysis and in-flight simulation experiments. The influence of various levels of static stability in the context of approach, landing, and climb tasks was studied, with particular emphasis on the effects of force gradient augmentation by means of downsprings. Cases in which spring force varied with elevator deflection or with angle of attack were considered in addition to the classical constant-force type. Constant-force or increasing force with up-elevator springs were favored when the preferred natural (no device) gradient was not available. Maneuvering stability tests focused on the effects of departure from linear force vs. normal acceleration characteristics, a local reduction in slope of 50 percent was detectable but considered to be acceptable. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 03, 1978
Accession Number
ADA060467

Entities

People

  • Cornelius L. Griffith
  • David R. Ellis

Organizations

  • Princeton University

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Actuators
  • Aircrafts
  • Airframes
  • Altitude
  • Center Of Gravity
  • Control Surfaces
  • Control Systems
  • Dynamic Response
  • Failure Mode And Effect Analysis
  • Flight Simulators
  • Horizontal Stabilizers
  • Landing Gear
  • Measurement
  • Nose Wheels
  • Radar Altimeters
  • Research Aircraft
  • Simulators

Readers

  • Aviation Science / Aeronautics.
  • Control Systems Engineering.