F-5E Flutter Model Test Report. Phase I

Abstract

This report presents the results of the first phase of wind tunnel tests on the F-5E Flutter Model. The primary objectives of this phase of tests were to establish the flutter characteristics of wing tip store plus clean wing configurations and then examine, in detail, the flutter characteristics of wing tip store plus single wing store configurations. In addition, a secondary objective was to briefly survey double underwing store configurations. Table 2 identifies the configurations - tested. The choice of wind tunnel target speeds was based on the following considerations: First, the maximum tunnel test speed had to be greater than the target flight clearance speeds by a factor of 1.15 to comply with the requirements of MIL-A-887O. Second, previous flight experience with the F-5A had provided evidence to indicate that the compressibility correction factor for certain store configurations might be as high as 1.4 in the Mach Number region from .88 to .92. Third, the tunnel test speeds were to be sufficiently high to provide meaningful data that could be directly used to correlate with analyses.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
ADA377254

Entities

People

  • C. J. Kolar
  • J. W. Lile

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Airplanes
  • Dynamic Response
  • External Stores
  • Frequency
  • Horizontal Stabilizers
  • Instrumentation
  • Leading Edges
  • Photographs
  • Plastic Explosives
  • Resonant Frequency
  • Spars
  • Strain Gages
  • Three Dimensional
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Aerospace Test and Evaluation
  • Fluid Dynamics.