Use: 12-cm A.P. projectile type 38 (howitzer) and A.P. projectile for 150-mm howitzers.

Over-all length: 5 1/2 inches.

Maximum diameter: 1 5/8 inches.

Threaded length: 9/16 inch, right-hand.

Construction: This fuze consists of an after section which houses the striker, centrifu-gal detents, and delay train, and a forward section housing the gaine. The base of the after section is threaded externally to thread into the base fuze carrier. The brass striker contains a circumferential groove into which two centrifugal detents are fitted. In flight a creep spring separated the striker from the primer. Resting between the base of the fuze and the after end of the striker is a lead disc, the purpose of which is to prevent freezing of the striker to the fuze body on setback. Housed in the center portion of the fuze are the primer, delay pellet, and detonator.

Operation: With centrifugal force the detents move out, freeing the striker, which mo-ves down against the creep spring on impact.

Figure 341 – Type 88 Small (Howitzer-Mortar) Base Fuze.