Service Apers Mines

a. General. Service APERS mines are used primarily to restrict or delay movement of enemy foot troops. These mines consist of an amount of high explosive, generally less than one pound, In a container fitted with a fuse. The fuse is activated by pressure or release of pressure, by pull on a trip wire, or by cutting a taut trip wire.

b. Fuzes. Functioning of APERS mines is initiated by various types of fuzes The fuse serves to transform mechanical action, such as pressure on the fuse or pull of a trip cord. For example, a detonating fuse provides an explosive force which detonates the high-explosive charge. An igniting fuze provides a burning action which ignites the propelling charge of a bounding-type APERS mine.

c. Types. APERS mines consist of two basic types (fig. 7-1): fragmentation and blast. Fragmentation types are further defined as bounding, fixed directional and fixed non-directional.

(1) Bounding type. This type mine (fig. 7-1) is placed beneath the surface of the ground. When the mine functions, a fragmentation projectile is expelled from the mine body. The ascending projectile explodes at a height of approximately 1 to 2 meters (3 to 6 feet) above the ground, propelling fragments in all direction.

(2) Fixed-directional type. This type (fig. 7-1) is placed on the ground or attached to an obstacle, such as a tree or pole, In the expected path of the enemy (fig. 7-2). When the mine explodes, fragments fan outward In a 60 degree arc above the ground.

(3) Blast type. This type (figs. 7-1 and 7-4) depends for effect on direct force developed by explosion. The mine functions without delay while still in contact with the enemy who has initiated it. The mine has an all plastic body and an integral plastic fuze with a steel firing pin. Because it is practically nonmetallic, the mine is non-detectable by magnetic mine detectors. The fuze detonates the main charge directly.

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