Launch Dynamics of APFSDS (Armor Piercing, Fin-Stabilized, Discarding Sabot) Ammunition

Abstract

An experimental program to determine the magnitude and nature of the launch perturbations to the projectile angular motion during sabot discard is discussed. The data analysis isolates the sources and quantifies the severity of the launch perturbations. An explanation of how the discard dynamics may be related to the inbore motion of the round is presented. The results show that the discard disturbances cause a net increase of 41% in the level of first maximum yaw. For the different configurations tested changes in the inbore contribution to first maximum yaw indicate that the structural design of the front boreriding system is critical to the inbore behavior. A correlation is given between the angular rate to angle ratio at the muzzle and the severity of the discard interactions. Based on the correlation an alternate launch philosophy is necessary for APFSDS ammunition to assure on target accuracy. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1984
Accession Number
ADA147374

Entities

People

  • P. Plostins

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ammunition
  • Angular Momentum
  • Angular Motion
  • Anti-Armor Ammunition
  • Coordinate Systems
  • Data Reduction
  • Dynamics
  • Free Flight
  • Frequency
  • Jet Propulsion
  • Line Of Fire
  • Munitions
  • Physics Laboratories
  • Projectiles
  • Test Equipment
  • Weapons
  • X Rays

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Systems Analysis and Design
  • ballistics.