Investigation of Reliance on Flash Tube Lacquer Seals for Proper Performance in Medium-Caliber Ammunition such as GAU-8/A and LW30

Abstract

This investigation studied the dynamic rupture pressures of the lacquer seal on the flash tube found in GAU-8/A and LW30 medium-caliber ammunition. The maximum pressure inside the flash tube was found to be near 42 MPa. At this pressure, significant gas generation would be achieved before the flash tube vented into the main propellant bed. Hot gas/particle flow at these pressures is expected to play a significant role in ignition of the main propellant charge and rapid functioning of the round.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2004
Accession Number
ADA432914

Entities

People

  • Stephen L. Howard

Organizations

  • United States Army Research Laboratory

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Ammunition
  • Burning Rate
  • Combustion
  • Combustion Products
  • Energetic Materials
  • Flash Lamps
  • Gas Flow
  • Gunpowder
  • Ignition
  • Materials
  • Military Research
  • Particles
  • Pressure Transducers
  • Propellants
  • Simulators

Fields of Study

  • Physics

Readers

  • Munitions and Ordnance Engineering
  • Rocket Propulsion.