Definition of Acceptable Levels of Mismatch for Equivalent Systems of Augmented CTOL (Conventional Take-Off and Landing) Aircraft

Abstract

High order pitch rate frequency responses of augmented aircraft can be broken down into the response of a low order equivalent system, and the mismatch between the response of the actual high order system and the low order equivalent. This study used variable stability NT-33 in-flight data to define frequency response envelopes of acceptable levels of mismatch. The envelopes were narrowest in a region believed to coincide with the piloted crossover region. The computer program for obtaining the equivalent system was then modified to weight the match in the crossover region. Equivalent system summaries for the LAHOS and Neal-Smith data sets are included.

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Document Details

Document Type
Technical Report
Publication Date
Dec 19, 1980
Accession Number
ADA145619

Entities

People

  • J. Hodgkinson
  • J. R. Wood

Organizations

  • McDonnell Aircraft Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Computer Programs
  • Computers
  • Control Systems
  • Control Theory
  • Data Sets
  • Flight Control Systems
  • Frequency
  • Frequency Response
  • Human Factors Engineering
  • Molecular Orbital Theory
  • Plastic Explosives
  • Resonant Frequency
  • Simulations
  • Three Dimensional
  • Transfer Functions
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aviation Science / Aeronautics.
  • Mathematical Modeling and Probability Theory.
  • Microwave Engineering.