V/STOL Equivalent Systems Analysis.

Abstract

A fixed base manned V/STOL handling qualities simulation was performed to answer questions concerning: (a) the pilot's frequency range of interest, (b) the maximum allowable mismatch between high order systems and their low order equivalents, (c) acceptability of high order appearing responses and (d) the piloting effects of phase lag at the natural frequency versus time delay. Various high or low frequency terms were added to low order attitude systems. Pilot ratings and comments showed that the pilot's frequency range of interest was .5-4.0 rad/sec; the amount of mismatch allowed was dependent on the type of high order dynamics added and the match frequency range; pilots did not accept high order appearing dynamics and; time delay is a better correlating parameter than phase lag at the configuration natural frequency. Equivalent systems analysis established criteria for the different flying qualities levels in terms of equivalent parameters.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1980
Accession Number
ADA325976

Entities

People

  • Carl G. Carpenter
  • John Hodgkinson

Organizations

  • McDonnell Aircraft Corporation

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Airplanes
  • Altitude
  • Control Systems
  • Equations Of Motion
  • Frequency
  • Frequency Response
  • Low Altitude
  • Mathematical Models
  • Resonant Frequency
  • Short Takeoff Aircraft
  • Simulations
  • Simulators
  • Systems Analysis
  • Test And Evaluation

Readers

  • Aerospace Engineering
  • Control Systems Engineering.
  • Systems Analysis and Design