2000, English, Book, Illustrated edition: An evaluation technique for an F/A-18 aircraft loads model using F/A-18 Systems Research Aircraft flight data / Candida D. Olney and Heather Hillebrandt, Eric Y. Reichenbach. Olney, Candida D.

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Physical Description
  • 24 p. : ill. ; 28 cm.
Published
  • Edwards, Calif. : NASA Dryden Flight Research Center, 2000.
Language
  • English

Edition details

Title
  • An evaluation technique for an F/​A-18 aircraft loads model using F/​A-18 Systems Research Aircraft flight data /​ Candida D. Olney and Heather Hillebrandt, Eric Y. Reichenbach.
Author
  • Olney, Candida D.
Other Authors
  • Hillebrandt, Heather.
  • Reichenbach, Eric Y.
  • Project Mercury (U.S.)
  • Hugh L. Dryden Flight Research Center
Published
  • Edwards, Calif. : NASA Dryden Flight Research Center, 2000.
Physical Description
  • 24 p. : ill. ; 28 cm.
Series
Subjects
Summary
  • A limited evaluation of the F/​A-18 baseline loads model was performed on the Systems Research Aircraft at NASA Dryden Flight Reserach Center (Edwards, California). Boeing developed the F/​A-18 loads model using a linear aeroelastic analysis in conjunction with a flight simulator to determine loads at discrete locations on the aircraft. This experiment was designed so that analysis of doublets could be used to establish aircraft aerodynamic and loads response at 20 flight conditions. Instrumentation on the right outboard leading edge flap, left airleron, and left stabilator measured the hinge moment so that comparisons could be made between in-flight-measured hinge moments and loads model-predicted values at these locations. Comparisons showed that the difference between the loads model-predicted and in-flight-measured hinge moments was up to 130 percent of the flight limit load. A stepwise regression technique was used to determine new loads derivatives. These derivatives were placed in the load model, which reduced the error to within 10 percent of the flight limit load. This paper discusses the flight test methodology, a process for determining loads coefficients, and the direct comparisons of predicted and measured hinge moments and loads coefficients.
Notes
  • "July 2000"
Language
  • English
Libraries Australia ID
Contributed by
Libraries Australia

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