Determination of Minimum Nonpropagation Distances of Various Configurations of 155mm M549 HERA Projectiles
Abstract
A series of tests were conducted to establish the minimum nonpropagation distance between configurations of 155mm M549 HERA projectiles, each loaded with 7.3 kilograms (16.0 pounds) of Composition B. Two configurations were tested, single projectiles and pallets of eight projectiles arrayed in a 2 x 4 matrix. Each test array was supported above the ground surface to simulate the actual conveyor system's standoff distance. This effort was in direct support of the modernization of the Iowa Army Ammunition Plant, Burlington, Iowa, but it is applicable to other similar facilities. The test results indicated that the minimum nonpropagation distance for single projectiles is 1.5 meters (5.0 feet) unshielded and 8.9 centimeters (3.5 inches) if a 7.6 centimeter (3.0 inch) diameter aluminum bar (6061-T6) is utilized as a shield between projectiles. The nonpropagation spacing between pallets of eight projectiles is 3.1 meters (10.0 feet) when a shielding arrangement consisting of two of the aforementioned aluminum bars is aligned with the projectiles on each end of the pallets.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1981
- Accession Number
- ADA099325
Entities
People
- William M. Stirrat
Organizations
- United States Army Armament Research, Development and Engineering Center