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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 TAIL FUZE |
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M151 |
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BOMBS USED IN |
AN-M30, 100 lb. G.P. | |
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AN-M57, 250 lb. G.P. | |
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Bombs equipped with M17 | |
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anti-ricochet assembly. |
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AN-M64, 500 lb. G.P. |
MECHANICAL IMPACT |
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bomb with M16 anti- |
PYROTECHNIC DELAY |
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ricochet assembly. | |
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FUNCTIONING |
M16A1 primer detonator |
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with 8-15 second delay. |
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ARMED CONDITION |
Consider armed if arming |
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| stem extends 1-5/16" from | ||
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fuze body (vane shaft slide), or after approximately 12 vane re- | |
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volutions. | |
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FUZES USED WITH |
None | |
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ARMING TIME |
Approximately 12 vane revolutions. | |
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VANE SPAN |
5 in. | |
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MAX. BODY DIAMETER |
1.5 in. | |
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OVERALL LENGTH |
5.55 in. | |
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MATERIAL |
Cadmium plated steel |
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GENERAL: |
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The M151 consists of a modified M112A1 series fuze body. The body has been lenghtened to accomodate a plunger stem which is attached to the plunger proper. A transverse arming stem replaces the regular in line arming stem. A retainer pin and spring type lock nut have been incorporated. In addition the M151 uses an anemometer type vane. The anemometer vane arming shaft is attached to the arming stem by a spring clip. For complete assembly see page 38. |
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OPERATION: |
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Upon withdrawal of the arming wire from the arming shaft, the anemometer vane is free to rotate and causes the arming stem to unscrew from the fuze. After approxima-tely 12 vane revolutions the arming stem has withdrawn completely from the plunger stem and the fuze is armed. On impact, the plunger compresses the anti-creep spring and the spring loaded firing pin forces the locking balls out into the enlarged part of the fuze cavity, freeing the firing pin. The cocked firing pin spring forces the firing pin against the primer, initiating the delay in the primer detonator. |
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This fuze is not procured for naval use. |
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