Minimum Nonpropagation Distances for M42/M46 GP Grenade Loading Tools
Final rept. Dec 1979-Nov 1981
ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER DOVER NJ LARGE CALIBER WEAPON SYSTEMS LAB
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As part of an Army-wide expansion and modernization program, the safe separation distance criteria to specifically support modernization concepts for the assembly of M42M46 GP Grenades into various projectiles were studied. The test results from this program were used to establish safety criteria for new and existing explosives manufacturing facilities. A series of exploratory and confirmatory tests were conducted for each of the three loading tool configurations studied two ring packs and a cluster tray. The M483 ring pack, containing eight grenades, had a nonpropagation distance of 30 centimeters 12 inches with a propagation probability of 6.98. The M509 ring pack, containing 15 grenades, had a nonpropagation distance of 45 centimeters 18 inches with a propagation probability of 7.11. The cluster trays, each containing four rings of eight grenades, were found to have only a 6.25 propagation probability within the trays therefore, zero spacing between trays has been safety approved.
- Ammunition and Explosives