Accession Number : AD0762555

Title :   Analysis of a Test Firing of 175mm, M437A2 Projectile for the Effect of Static and Dynamic Imbalances on Dispersion.

Descriptive Note : Technical rept.,

Corporate Author : PICATINNY ARSENAL DOVER N J

Personal Author(s) : Hudgins,H. E. , Jr

Report Date : JUL 1973

Pagination or Media Count : 31

Abstract : ECTILES, BALLISTICS), PROJECTILE TRAJECTORIES, FIRING TESTS(ORDNANCE), SCATTERING, TOLERANCES(MECHANICS), RANGE TABLES, STATISTICAL DISTRIBUTIONSM-437 CARTRIDGES(175-MM), M-437A2 CARTRIDGES(175-MM)Twenty-five 'acceptable' shells from SOP Lot 12-18, selected to match the statistical distributions of static and dynamic imbalances of the entire lot, and twenty-five of the 'worst' (highest weighted sum of static and dynamic imbalances) of the rejected shell from Gateway were fired at acceptance firing conditions. Each shell was randomly oriented in the breech, the two groups were fired alternately, and the impact point of each was recorded. An analytical and statistical study of the effect of static and dynamic imbalance on dispersion was conducted. The results of these studies are discussed in the report. (Modified author abstract)

Descriptors :   (*PROJECTILES, BALLISTICS), PROJECTILE TRAJECTORIES, FIRING TESTS(ORDNANCE), SCATTERING, TOLERANCES(MECHANICS), RANGE TABLES, STATISTICAL DISTRIBUTIONS

Subject Categories : Ammunition and Explosives
      Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE