FLIGHT EVALUATION OF VARIOUS SHORT PERIOD DYNAMICS AT FOUR DRAG CONFIGURATIONS FOR THE LANDING APPROACH TASK

Abstract

The T-33 variable stability and variable drag airplane was used in a flight program to evaluate various longitudinal short period characteristics at each of four drag configurations for the landing approach task. Pilot rating and comment data were collected and used to determine short period requirements for the landing approach task. The importance of the slope of the thrust required vs. velocity curve is discussed and related to pilot comments and control difficulties. The longitudinal control gain selected by the pilot was a function of short period frequency and damping ratio. Curves relating control authority and short period frequency and damping ratio are derived from these data. The power spectral density of the pilot's elevator stick motion was found to be significantly affected by short period dynamics and atmospheric turbulence. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1964
Accession Number
AD0608620

Entities

People

  • Charles R. Chalk

Organizations

  • Calspan

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Air Force
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Airplanes
  • Airspeed
  • Control Systems
  • Dynamic Pressure
  • Flight Instruments
  • Flight Paths
  • Frequency
  • Glide Slope
  • Landing Gear
  • Measurement
  • Resonant Frequency
  • Turbulence

Readers

  • Software Engineering
  • Structural Dynamics.
  • Systems Analysis and Design