Multizone Artillery Propelling Charge Studies
Abstract
The requirements for the design of a multizone charge are demanding in that pressure waves must be minimized at all zone levels without compromising low-zone performance. The development program for the 155-mm, Zones 3-6, XM211, Propelling Charge, highlighted the need for careful selection of the interrelated components that comprise a large-caliber propelling charge. AS a specific example, severe pressure waves in high-temperature firings (63 degrees C) at Zone 5 resulted with one of the charge configurations investigated. This instability was thought to be due possibly to dynamics of charge movement and impact on the projectile or fuze malfunctions and ballistic variability are a concern. This study investigated,, specifically, the influence of charge interzone permeability, distribution of ullage, charge increment movement, igniter brisance, placement of parasitic components, etc., on the formation of pressure waves and charge component dynamics. Test charges used to address these issues were fabricated to resemble the earlier XM211 configuration that produced pressure waves. Gun tests with these charges were conducted using M483A1 projectiles fired from an M199 cannon instrumented with six chamber pressure gages.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1983
- Accession Number
- ADA128285
Entities
People
- Carl R. Ruth
- Thomas C. Minor
Organizations
- Ballistic Research Laboratory