"MC DRAG" - A Computer Program for Estimating the Drag Coefficients of Projectiles

Abstract

This report presents a FORTRAN program 'MC DRAG' for estimating a projectile's zero-yaw drag coefficient from the given values of certain size and shape parameters. The results are valid over a Mach number range of 0.5 to 5 and a projectile diameter range of 4 to 400 millimetres. A user's guide and a FORTRAN listing of MC DRAG is provided. The program is applied to three illustrative examples: (1) an experimental low-drag small arms bullet, the 5. 56mm BRL-1 design; (2) a 55mm scale model of the Minuteman re-entry stage vehicle; (3) the 155mm long-range artillery shell M549. The MC DRAG program estimates drag coefficient to within 3% error at supersonic speeds, 11% error at transonic speeds, and 6% error at subsonic speeds.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1981
Accession Number
ADA098110

Entities

People

  • Robert L. Mccoy

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Ammunition
  • Boundary Layer
  • Computer Programs
  • Drag
  • Friction
  • Geometry
  • Mach Number
  • Military Research
  • Munitions
  • Pressure Distribution
  • Projectile Noses
  • Projectiles
  • Rotating Bands
  • Skin Friction
  • Small Arms
  • Weapons

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Approximation Theory.
  • Microwave Engineering.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow