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| U.S.N.B.D. - UNITED STATES - BOMBS AND FUZES; PYROTECHNICS |
| SECTION III - BOMB FUZES |
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DATA: |
U.S. ARMY NOSE FUZE |
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M 1 |
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BOMBS USED IN |
6 lb. Incendiary, AN-M69 | |
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FUNCTIONING |
3 to 6 seconds delay after | |
| impact | ||
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ARMED CONDITION |
When safety plunger is out |
INERTIA TYPE WITH DELAY |
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FUZED USED WITH |
None | |
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ARMING TIME |
Instantaneous | |
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MAX. BODY DIAMETER |
1.125 in. | |
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OVERALL LENGTH |
2.5 in. | |
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MATERIAL |
Die cast aluminum and | |
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steel |
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GENERAL: |
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The M1 fuze is screwed into the side of the nose of the AN-M69 bomb. When as-sembled, the two arrows on the top of the fuze case must be parallel to the longitudi-nal centerline and point aft. This is necessary in order that the fuze will fire on nose a striker of the same material, a primer cap, a lead coated spitter fuze (60% black pow-der - 40% collodion) and a booster charge consisting of 1.2 grams of black powder, as-sembly is contained in a cover of steel tubing. A safety plunger prevents the striker from detonating the primer cap while the bomb is clustered. |
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OPERATION: |
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Upon release from the cluster, the spring operated fuze safety plunger in each bomb moves outward thereby arming the fuze. Upon impact, the momentum of the striker carries it forward and causes the striker pin to detonate the primer cap witch in turn ignites the lead coated spitter fuze. The latter from three to five seconds to burn. The spitter fuze ignites the booster charge of black powder contained in a celluloid cup in the end of the fuze case. This ignites the igniter-ejector charge of black powder and oiled magnesium powder in the nose cup of the bomb. |
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REMARKS: |
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See AN-M69 bomb, page 108, showing the M1 fuze assembled in the bomb. |
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