17.1 MINE, ANTIPERSONNEL, PRACTICE, T4

a. General. MINE, antipersonnel, practice, T4 is similar in appearance and operation to the M2A3. Obsolete bodies of M2 and M2A1B1 mines, with the bases painted blue and the marking "T4 Practice" on them, are utilized. This mines does not contain a propelling charge in the base as does the standard H.E. mine. The propelling charge for projecting the cardboard projectile into the air is contained in the igniter charge on the base of the fuze. The projectile contains a 12-gauge shotgun charge loaded with black powder. The explosion of the shotgun shell simulates a live mine. The primer and igniter, which has an approximate 5-second delay, is activated by FUZE, mine, combination T14E1. This fuze is a three-pronged firing device similar to FUZE, mine, combination M6 (par. 24.1).

b. Packing. Two mines with fuzes and twenty replaceable parts are packed in one box. The twenty replaceable parts consist of twenty projectiles, twenty propelling charges and twenty spotting charges in two containers, and twenty igniter assemblies in two containers.