Over-all length

Maximum diameter

Thread diameter

This fuze has a brass body. The detonator holder is held away from the firing pin by a creep spring and a split brass ring. This ring is split throughout its entrie length so as to permit expansion during setback. A brass nose plug screws into the top of the fuze body and holds the firing pin in position. This plug contains a flash hole filled with black powder to act as a delay.

The booster fits over the delay pellet and is secured to the fuze by the shoulder on the nose plug.

On setback, the split arming ring sets back over the detonator holder and leaves the de-tonator holder held off the firing pin by the creep spring. On impact, the detonator over-comes the resistance of the spring by its momentum and hits the firing pin. The flash produced by the detonator passes through the flash-holes in the firing pin and then igni-tes the delay, which in turn sets off the booster.

Figure 224
Base Fuze for 47/32 A.P.