Determination of Aerodynamic Drag and Exterior Ballistic Trajectory Simulation for the 155mm, DPICM, M864 Base-Burn Projectile

Abstract

HAWK Doppler radar data collected at Yuma Proving Ground, Az, for the 155mm, DPICM, M864 base-burn projectile have been reduced for the purpose of determining the aerodynamic drag. The estimated base drag reduction during base- burn motor functioning showed a very good correlation with time of flight and to a lesser degree with local atmospheric air pressure. No correlation was evident with flight Mach number, provided an effective base drag coefficient is assumed which is just a function of Mach number. This result suggests a simple addition to the Modified Point Mass Trajectory Model for the exterior ballistic simulation of the M864 base-burn projectile. Keywords: Projectile trajectories; DPICM (Dual-purpose Improved Conventional Munitions); Propelling charges; Ballistic trajectory modeling.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA209510

Entities

People

  • Robert F. Lieske

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Drag
  • Air Pressure
  • Artillery
  • Ballistic Trajectories
  • Classification
  • Computer Programs
  • Doppler Radar
  • Drag
  • Drag Reduction
  • Mach Number
  • Munitions
  • Projectile Trajectories
  • Projectiles
  • Propelling Charges
  • Regression Analysis
  • Security
  • Simulations

Readers

  • Computational Modeling and Simulation
  • Fluid Dynamics.
  • ballistics.