DEVELOPMENT OF A SAFE EXPELLING SYSTEM FOR THE M8 PRACTICE ANTIPERSONNEL MINE.
PICATINNY ARSENAL DOVER N J FELTMAN RESEARCH LABS
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Several possible new expelling systems for the M8 practice antipersonnel mine were investigated. The best results were obtained with a system which contained 0.7 gram of a smoke composition consisting of 40 1-methylaminoanthraquinone, 40 potassium chlorate, and 20 sucrose in the base of the tube and 0.2 gram of A-4 black powder adjacent to the fuze. The volume and perceptibility of the smoke were superior to that observed with the standard black powder charge while no flame was visible. The sound produced and the height to which the plug was ejected were equal to that of the standard. Rounds containing the above charges were stored at -40F and 165F and fired successfully at the same temperatures. When a yellow smoke composition was used in conjunction with black powder, it was also found to expel the plug with no accompanying flame. Because it was decided, however, that a red smoke would be more perceptible than the yellow, the yellow composition was not recommended. Physicochemical data was calculated for the compositions investigated. Author