On the Accuracy of Flechettes by Dynamic Wind Tunnel Tests, by Theory and Analysis, and by Actual Firings

Abstract

The accuracy and dispersion of flechettes are investigated by: (1) An exploratory firing program; (2) A supersonic dynamic testing wind tunnel program; (3) Development of a theory for jump and dispersion for computer computation and analysis; and (4) Precision range firings at this Arsenal. The exploratory firing program reveals the importance of fin and body damage, the blast region, and saboting. The dynamic wind tunnel program yields the static and dynamic aeroballistic stability coefficients on various flechette designs. The theory and analysis program has presented the effects of the initial launching conditions, the various stability coefficients and asymmetries and has provided accuracy criteria. Lastly, the flechette firing range program provided a correlation between theory and experiment which clearly suggests that high accuracy and low dispersion in flechettes is possible when optimum aerodynamic design is coupled with good saboting and minimization of blast.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1975
Accession Number
ADB006505

Entities

People

  • C. W. Ingram
  • J. D. Nicolaides
  • L. E. Lijewski
  • M. J. Garsik

Organizations

  • University of Notre Dame

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Ammunition
  • Angular Momentum
  • Angular Motion
  • Cameras
  • Computer Programs
  • Computers
  • Data Analysis
  • Munitions
  • Photographic Materials
  • Photographs
  • Photography
  • Plastic Explosives
  • Projectiles
  • Test And Evaluation
  • Three Dimensional
  • Wind Tunnels

Readers

  • Fluid Dynamics.
  • Missile Defense Systems.
  • Regression Analysis.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow