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| U.S.N.B.D. - BRITISH BOMBS AND FUZES; PYROTECHNICS; DETONATORS |
| BRITISH FUZES & PISTOLS |
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BRITISH NOSE FUZE |
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BOMBS USED IN |
(a) 30 lb. L.C. Mks I & II |
(A) No. 38 |
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30 lb. I.B. Mks I & II |
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(b) 120 lb. Smoke Bomb |
Mks I & II |
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FUNCTIONING |
(a) .5 sec. delay on N0. 38 |
No. 38 ND |
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Mks I & II |
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(b) 2.5 sec. delay |
Mk II |
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ARMD CONDITION |
When the striker is screw- |
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ed down. |
(B) No. 864 |
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FUZES USED WITH |
None | |
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MAX. BODY DIAMETER |
2.25" |
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OVERALL LENGTH |
5.5" (Striker up) |
(Service) |
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COLOR |
Brass | |
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DESCRIPTION: |
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The fuze consists of a cap, body, and brass piece. In the cap is screwed the needle striker which is locked by a lock nut. Below this is a ferrule against the notches of which rests a creep spring which holds down an inertia pellet containg the detonator. Below the detonator in the inertia pellet there is a flash channel leading to the delay element and the magazine. |
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OPERATION: |
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When the bomb is put in the plane the lock nut is loosened, the striker is screwed down, and the lock nut is re-tightened. The fuze is now armed. Upon impact, the iner-tia pellet overcomes the creep spring and carries the detonator down against the stri-ker. The flash ignites the delay element which in turn fires the magazine. |
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REMARKS: |
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(1) The Mk II differs from the Mk I in that it does not have the strengthening collar to meet conditions of oblique impact. This is also true of the Mk II ND. |
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(2) The No. 38 ND Mk II has gunpowder in place of the delay element. |
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(3) The No. 864 Mk I differs from the No. 38 by having a smaller magazine. |
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