Aerodynamic Analysis of the Rifleman's Assault Weapon

Abstract

A wind tunnel test was conducted for seven different shell configurations. The basic configuration was a spherical shell with modification to the base section. A spherical aft shell, a truncated aft shell, and various artificial boundary layer trip devices on the base section was used. The test was conducted for Mach numbers up to 0.3 to determine the aerodynamic forces at angles-of-attack from -2 to 15 deg and various spin rates. Force and moment data were obtained for these runs. The magnus forces due to the velocity component normal to the spin axis were measured in terms of the side force coefficient CY.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1979
Accession Number
ADA068039

Entities

People

  • Jimmie N. Derrick

Organizations

  • United States Army Aviation and Missile Command

Tags

DTIC Thesaurus Topics

  • Aerodynamic Forces
  • Boundary Layer
  • Dispersions
  • Errors
  • Flight
  • Geometry
  • Mach Number
  • Reynolds Number
  • Security
  • Simulations
  • Simulators
  • Transitions
  • Trip Wires
  • Turbulent Flow
  • Wind
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Marksmanship and Weaponry.