Aeroballistic Evaluation and Computer Stability Analysis of the U. S. Navy 20-Millimeter General Purpose Projectile

Abstract

The report presents the results of ballistics range and wind-tunnel measurements of the static force and moment and the pitch-damping, roll-damping and Magnus moments for a General Purpose 20-Millimeter Projectile. Data are presented for a Smooth and Basic configuration. These aerodynamic data are used in a special digital computer program to rapidly assess the stability of the projectiles over various mission profiles. The normal-force and pitching-moment derivatives are evaluated, theoretically, by Wood's method and compared with the measurements.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1971
Accession Number
AD0729238

Entities

People

  • Frank J. Regan
  • Virginia L. Schermerhorn

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computer Programs
  • Differential Equations
  • Flight Paths
  • Flight Speeds
  • Mach Number
  • Measurement
  • Moment Of Inertia
  • Munitions
  • Muzzle Velocity
  • Ordnance Laboratories
  • Plastic Explosives
  • Projectiles
  • Test Facilities
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Microwave Engineering.