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| ITALIAN AND FRENCH EXPLOSIVE ORDNANCE |
| Chapter 2 |
| ITALIAN BOMB FUZES |
| Tail Fuze for Hollow Charge Bombs |
| Data |
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Bombs used in |
Hollow Charge bombs |
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Fuze used with |
Alone |
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Over-all length |
5.5 in. (without booster or extension flash tube) |
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Over-all length of vanes |
Unknown |
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Width of fuze body |
1.8 in. |
| Description |
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The body of the fuze is made in three parts. The lowest position in zinc alloy and screws into the rear end of the bomb from the inside. Into the base of the lower body screws the cap holder containing the detonator. An aluminum collar holding a flanged booster screws onto the cap holder. |
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The central portion of the fuze is of brass and screws into the lower body. It houses the two steel locking balls which, in the unarmed condition of the fuze, project through the lower body into a groove in the heavy arming sleeve. The steel balls are held in the safe-ty position by the arming spindle screwed into the tail of the bomb. |
| Operation |
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On release, the safety pin is withdrawn, allowing the vanes to rotate. When the vanes rotate enough to raise the arming spindle 0.5 in., the steel balls move inward, freeing the arming sleeve. On impact, the sleeve sets down into the recess in the base of the fuze and so frees the firing balls. These are pressed out-wards into the groove in the arming sleeve, and the striker is thus released. |
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Figure 68 |
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