The Aerodynamic Characteristics of 7.62mm Match Bullets

Abstract

Spark photography range tests of three 7.62mm tech bullets were conducted to determine the aerodynamic and flight dynamic characteristics at supersonic and subsonic speeds. The drag coefficients of the match bullets were determined, and recommendations for rifling twist rates to insure gyroscopic stability were made. The observed nonlinear Magnus moment properties of the 7. 62mm match bullets predict a small slow arm limit cycle yaw at supersonic speeds, and a larger limit cycle yaw at subsonic speeds.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1988
Accession Number
ADA205633

Entities

People

  • Robert L. Mccoy

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Ammunition
  • Cartridge Cases
  • Coefficients
  • Engineering
  • Equations
  • Free Flight
  • Mach Number
  • Measurement
  • Molecular Dynamics
  • Moment Of Inertia
  • Muzzle Velocity
  • Photography
  • Physical Properties
  • Projectiles
  • Standards
  • Test Facilities

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • ballistics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow