Identification and Correlation of the F-4E Stall/Post-Stall Aerodynamic Stability and Control Characteristics from Existing Test Data.

Abstract

The report documents the results of a study performed for the United States Air Force Flight Dynamics Laboratory to identify the high angle of attack post stall aerodynamic stability and control characteristics of the F-4 aircraft from existing full scale and radio-controlled drop model test data and to correlate these results with similar characteristics obtained from wind tunnel tests. A parameter identification procedure was set up to extract these nonlinear characteristics from flight test records using a nonlinear iterated Kalman filter/fixed-point smoother algorithm and a least square equation error method. Model form is established from wind tunnel data by representing the aerodynamic coefficients by Taylor's series expansions for selected ranges of angle of attack. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1973
Accession Number
AD0779928

Entities

People

  • Bernard J. Eulrich
  • Norman C. Weingarten

Organizations

  • Calspan

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Aerodynamic Stability
  • Air Force
  • Aircrafts
  • Algorithms
  • High Angles
  • Identification
  • Kalman Filters
  • Model Tests
  • Research Facilities
  • United States
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Aerodynamics/Aeronautics.