Lateral Aerodynamics Extracted from Flight Tests Using a Parameter Estimation Method,

Abstract

Flight data from a 60 degree delta wing aircraft have been analysed using a modified Newton-Raphson parameter estimation procedure. The model equations used for the analysis were extended to account for sideslip vane errors and for lateral accelerometer position error. Lateral derivatives extracted from the data have been compared with wind tunnel measurements and theoretical estimates and areas of agreement and disagreement identified. The method has also been applied to the analysis of fin loads measured in flight and some tentative conclusions reached. The results confirm the effectiveness of the parameter identification procedure in flight test analysis and its ready applicability to a variety of related problems. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1978
Accession Number
ADA073203

Entities

People

  • R. A. Feik

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accelerometers
  • Agreements
  • Aircrafts
  • Center Of Gravity
  • Delta Wings
  • Department Of Defense
  • Engineering
  • Equations
  • Equations Of State
  • Flight
  • Flight Maneuvers
  • Mach Number
  • Mathematical Models
  • Measurement
  • Sideslip
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Aerodynamics.
  • Aviation Science / Aeronautics.
  • Control Systems Engineering.