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(41) Mechanical Clockwork Fuze
Bombs Used In: SD 2A butterfly bomb.
Color: Unpainted.
Material: Zinc alloy case around brass and steel mechanism.
Possible Actions: Aerial burst or impact.
Arming Times: 2.9 to 3.5 seconds.
Principal Markings: (41).
Secondary Markings: Zeit blx, AZ 34-41.

The (41) fuze is a small clockwork type fuse which threads into the SD 2 butterfly bomb. It has two possible operational actions: aerial burst or impact. The fuze is armed through action action of the drogue vanes which turn as the bomb descends, threading the arming spindle out of the path of the release arm. When the bombs are released from the container, the drogue vanes rotate causing the arming spindle to thread out of the path of the release arm.

    The fuze may be set for air burst ("zeit") or impact ("AZ"). If set on "zeit", the setting button (12) depreses the inertia pellet (4). This allows the stop arm (5), release arm (8), and release cam (6) to rotate clockwise until the slot in the release cam (6) is presented to the striker (9). The striker is then free to move into the detonator.
    If the fuze is set to function on impact the setting screw is turned to "AZ" and the fuze functions as follows: Pressure of spring loaded striker (9) on release cam (6) turns release arm (8) clockwise through gear train (1) until stop arm (5) bears against spring held inertia pellet (4). On impact the inertia pellet (4) falls from the path of the stop arm(5) allowing it to continue in a clockwise direction until the groove in the release cam (6) is presented to the striker. The striker (9) is then free to move into the detonator.

REMARKS: The fuze is screwed into the bomb.

All information for this entry were acquired from Army Technical manual TM 9-1985-2/Air Force Technical Order TO 39B-1A-9 GERMAN EXPLOSIVE ORDNANCE (Bombs, Fuzes, Rockets, Land Mines, Grenades & Igniters)


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