ANALYSIS OF WEAR DATA FOR THE 155MM XM198
Abstract
This test attempts to determine which characteristics of tube or projectile cause or influence muzzle wear, particularly for the 155mm XM198 howitzer family of components (XM199 cannon, XM549 projectile, XM123 propelling charge). The test was limited to an evaluation of conditions which either are known or are suspected to have an impact on muzzle wear. The assumption was made that the extent of shell body engraving is directly proportional to the extent of muzzle wear. No single variable under observation was found which controls the presence of body engraving; it was concluded that a number of causes, perhaps in specific combinations, produce this effect. Several parameters were found, however, which increase either the incidence or the extent of body engraving including coppering, projectile seating as influenced by the forcing cone, dynamic instability, projectile imbalance, and escape of propellant gases ahead of the rotating band. Based solely on the results of this test, a hypothesis is proposed concerning the mechanism of muzzle wear.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1975
- Accession Number
- ADA013866
Entities
People
- Richard G. Hasenbein