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| ITALIAN AND FRENCH EXPLOSIVE ORDNANCE |
| Chapter 4 |
| ITALIAN PROJECTILE FUZES |
| Percussion Nose Fuze M10 (Guerritore) P.C. and M (Guerritore) M.E.G.C. |
| Data |
| Projectile used in |
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M10 p.c. |
Small Caliber H.E. Shell |
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M (Guerritore) m.e.g.c. |
Medium and Lager Caliber M10 Shell |
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Over-all length |
Unknown |
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Maximum Diameter |
Unknown |
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Thread diameter |
Unknown |
| Description |
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M10 (Guerritore): This fuze consists of a brass body which is closed at the nose by a cap holding the firing pin and closed at the base by a brass plug holding a gunpowder pellet. In the center of the fuze is the detonator holder, which contains the detonator at the top and a gunpowder flash charge at the bottom. A creep spring and a split ring keep the detonator of the needle. An inertia ring, which is held by a spring, surrounds the de-tonator holder at the top. A safety pin, which is removed before firing, is also included. |
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M (Guerritore): This fuze is similar in design and function to the M10 (Guerritore). It dif-fers, however, in dimensions, since it is intended for use in projectiles of medium and large caliber. |
| Operation |
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On firing the inertia ring sets back and compresses its spring. During deceleration, the split rin opens, as a result of centrifugal force, to such a diameter as to allow the deto-nator holder to be held away from the firing pin by only the creep spring. |
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Figure 202 |
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