Medium Caliber Cartridge Improvements using Micro Electro-Mechanical Systems and Direct Write Explosive Ink
Abstract
40 millimeter (mm) high-explosive, dual-purpose (HEDP) M433 and M430 cartridges have been in service since the 1950's and 1970's respectively, and are used with the M203 low-velocity grenade launcher and the MK-19 grenade machine gun by all services. Both cartridges use point detonating fuzes with mechanical safe and arm (S&A) devices which do not reliably detonate on soft impact targets or high graze angles. The objective of this effort is to improve the reliability of these cartridges through a Micro-Electro-Mechanical (MEMS) fuzing system that incorporates electronic initiation, improved target sensing using paired MEMS impact sensors, self-destruct capability, command arm enable, more accurate arming distance, and automated explosive ink loading. In addition to improved reliability, these design enhancements will reduce volume and cost. Outputs and efficiencies: Incorporate impact sensors that will sense initial impact and electronically send a signal to initiate the explosive train for improved lethality and improved reliability on soft targets (from 50 percent current performance to 90 percent), and also significantly reduce the number of duds on the battlefield and training ranges. The 40mm MEMS Fuze also will require less volume providing room for improvements in lethality or other future alternate applications. TTI accelerates transition of this technology from the Army Armament Research, Development and Engineering Center (ARDEC) to Project-Manager Soldier Weapons (PM-SW) in approximately three years. This project was funded in FY 2010 via the Quick Reaction Special projects program element.
Document Details
- Document Type
- Accomplishment
- Publication Date
- Oct 01, 2012
- Source ID
- 74257307ea74efb6381de0d6baef7b55