Methods for Evaluating the Effects of Rain on Point-Detonating Fuzes and Impact Switches,
ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND ABERDEEN PROVING GROUND MD CHEMICAL SYSTEMS LAB
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Point-detonating fuzes PADFs used on artillery rounds and impact switches on HEAT ammunition are impact-sensitive devices ISDs designed to initiate the explosive train of ammunition upon impact with a variety of solid and semi-solid surfaces. To assure that these devices function reliably, requires that they be made highly sensitive to impact to improve their functional reliability, the probability that they will function prematurely increased when fired through rain. Such premature functioning makes the round less effective, and can be hazardous to friendly troops. Thus, there is a need to test developmental and production ISDs for their sensitivity to premature initiation when striking raindrops during flight. Therefore, test methods, capable of producing the required test conditions on demand in a reproducible and controllable way, are desirable.