Subsonic and Transonic Aerodynamics of a Wraparound Fin Configuration,

Abstract

Subsonic and transonic aerodynamic data for a wraparound fin configuration are presented. Free-flight aeroballistic tests to obtain these data were conducted at atmospheric pressure and over a Mach number range of 0.6 to 1.35. The aerodynamic coefficients and derivatives presented in this paper were extracted from the position-attitude-time histories of the experimentally measured trajectories using nonlinear numerical integration data reduction routines. Results of this analysis indicate that a dynamic instability exists above Mach 1.0 and is related to an out-of-plane side moment which is dependent of the pitch angle. The stability boundaries associated with this side moment are mapped. Designers should consider this moment whenever wraparound fins are used. Keywords include: WAF(Wraparound Fins), Aerodynamic stability, Side moment, Pitch-roll resonance, Folding fins, and Submunitions.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1985
Accession Number
ADA153646

Entities

People

  • G. L. Winchenbach
  • R. H. White
  • R. S. Buff
  • W. H. Hathaway

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aerodynamic Forces
  • Aerodynamic Stability
  • Aerodynamics
  • Air Force
  • Barometric Pressure
  • Boundaries
  • Classification
  • Data Reduction
  • Engineers
  • Equations Of Motion
  • Flow
  • Mach Number
  • Numerical Integration
  • Physical Properties
  • Research Facilities
  • Supersonic Flight

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.