An In-Flight Investigation of Pilot-Induced Oscillation Suppression Filters During the Fighter Approach and Landing Task.

Abstract

An investigation of pilot-induced oscillation suppress ion (PIOS) filters was performed using the USAF/Flight Dynamics Laboratory variable stability NT-33 aircraft, modified and operated by Calspan. This program examined the effects of PIOS filtering on the longitudinal flying qualities of fighter aircraft during the visual approach and landing task. Forty evaluations were flown to test the effects of different PIOS filters. Although detailed analyses have not been undertaken, the results indicate that PIOS filtering can improve the flying qualities of an otherwise unacceptable aircraft configuration (Level 3 flying qualities). However, the ability of the filters to suppress pilot-induced oscillations appears to be dependent upon the aircraft configuration characteristics. Further, the data show that the filters can adversely affect landing flying qualities if improperly designed. The data provides an excellent foundation from which detail analyses can be performed.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1981
Accession Number
ADA350351

Entities

People

  • R. E. Bailey
  • R. E. Smith

Organizations

  • Calspan

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Aeronautics
  • Air Force
  • Aircrafts
  • Airplanes
  • Closed Loop Systems
  • Computers
  • Control Surfaces
  • Control Systems
  • Digital Computers
  • Fighter Aircraft
  • Flight Control Systems
  • Frequency
  • Standards
  • Test And Evaluation
  • Turbulence
  • Workload

Readers

  • Aerosol Science/Aerosol Physics
  • Aerospace Engineering
  • Robotics and Automation.