Projectiles used in

Over-all length

Maximum diameter

Thread diameter

Markings

M36

A.D.E.

These two fuzes are similar except that the A.D.E. M36 has a percussion mechanism in the base consisting of detonator, centrifugal safety bolt, set-back element, shear wire, and striker. The centrifugal bolt blocks the firing pin from the detonator. A spring-loaded set-back detent locks the centrifugal bolt in position. These aluminum fuzes are fitted with a pull-off cover. The fuze has an outer cover under which are three time combust-ion rings. The middle ring is fixed; the upper and bottom rings are movable. Gases do not pass directly into the atmosphere, but collet under the cover, in which are escape holes. Over the escape channels in the fuze body is a control plunger fitted with a spring. The whore device is designed to minimize effect of changes in atmospheric pressure upon the rate of burning. In the fuze body are a locking rod, ball, and spring, to prevent any chan-ge in setting of the line rating after firing.

M36: The fuze is set by turning the cover, which rotates the upper and lower time rings to the desired setting. On firing, the detonator holder sets back against the creep spring and stirrup spring to hit the firing pin. The flash travels to the upper time ring, which in turn burns to the middle ring, then to the lower ring, and finally to the charge in the base.

A.D.E. M36: The time operation is exactly the same as the M36. The percussion mecha-nism function as follows: On setback, the detent moves back, withdrawing the projection free from the centrifugal bolt, which moves out-wards under influence of centrifugal force. On impact, the striker breaks the shear wire and moves against the creep spring to hit the detonator, which sets off the main charge.

Figure 220
Time and Percussion Nose Fuze A.D.E. M36