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ALLIED BOMBS AND FUZES |
| BRITISH FUZES |
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FUZE DATA |
FILE NO.: 2211.N84 |
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NATIONALY: BRITISH |
INFORMATION DATE: February 1944 |
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DESIGNATION |
PRINCIPAL MARKING |
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Fuze No. 846 |
CLASSIFICATION |
Fuze, Nose, Mechanical Impact |
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Mk I & II |
TYPE OF MISSILE |
Incendiary & Gas Bombs |
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MARKINGS: |
No. 846/I, Mfr's |
BOMBS USED IN: |
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initial and date |
30 lb. Incendiary |
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stamped on shoulder |
30 lb. L.C. |
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LEGEND |
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1 |
Striker |
5 |
Return ball |
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2 |
Cylindrical clip |
6 |
Primer |
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3 |
Creep spring |
7 |
Safety pin |
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4 |
Inertia weight |
8 |
Burster |
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COLOR |
Unpainted brass. |
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OVERALL LENGTH |
2.75 inches. |
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OVERALL WIDTH |
1.875 inches. |
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MATERIAL OF CONSTRUCTION |
Brass. |
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DESCRIPTION |
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The fuze is a brass casting, the lower part of which is bored to receive the operatio-nal parts. The striker (1) is fixed in the upper end of the chamber. A cylindrical clip (2) with four brass tabs is inserted below the striker. A creep spring (3) bears against the tabs and the movable inertia weight (4). The carrier has a flash hole beneath the primer (6). A steel retainer ball (5) lodges in the side of the chamber and holds back the pri-mer when unarmed. The ball is held in place by the safety pin (7). |
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OPERATION |
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The safety pin (7) is pulled out when the bomb is released, thus allowing the ball (5) to fall outboard free of the inertia weight (4). On impact, it rides down on the creep spring (3), bends back the tabs of the cylinder (2) and impales the detonator (6) on the striker (1). The flash is transmitted back through the flash and ignites the burster (8). |
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POSITION & METHOD OF FIXING IN BOMB |
Fuze is placed inside bomb and held in place by a nose plug through which the safety pin protrudes. |
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FUZES LIKELY TO BE FOUND WITH |
None. |
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COMPONENTS OF EXPLOSIVE TRAIN |
Primer (6) and black powder burster (8). |
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ARMING TIME |
Arms immediately on release of safety pin. |
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REMARKS |
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Marks I and II differ only in constructional detail. |
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