Basic Design Analysis of GAU-7/A Telescoped Ammunition

Abstract

A research program was conducted to determine the causes of variability in GAU-7/A telescoped ammunition featuring molded grain propellant and a combustible case. The approach to the problem took the form of a coordinated analytical/experimental effort. a computer simulation of the GAU-7/A round was formulated, coded, debugged, validated and used to help determine the sensitivity of ammunition parameters. The experimental effort generated empirical inputs and functions for use in the model as well as defining and providing insight into the variability problem. The results of this program indicate that (1) inconsistent grain breakup (primarily the aft grain), (2) poorly performing and variable ignition components, and (3) interaction of these with a combustible case and other components easily influenced by moisture are primary contributors to GAU-7/A telescoped ammunition performance variability.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1977
Accession Number
ADB024728

Entities

People

  • Edward B. Fisher

Organizations

  • Calspan

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Ammunition Components
  • Closed Bomb Tests
  • Combustion
  • Computer Simulations
  • Heat Transfer
  • Materials
  • Mathematical Models
  • Measurement
  • Momentum
  • Muzzle Velocity
  • Pressure Transducers
  • Projectiles
  • Propellant Grains
  • Rotating Bands
  • Test And Evaluation
  • Three Dimensional

Fields of Study

  • Engineering

Readers

  • Rocket Propulsion.
  • Theoretical Analysis.
  • ballistics.

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers