DATA:

BOMBS USED IN

FUNCTIONING

ARMED CONDITION

FUZES USED WITH

ARMING TIME

MAX. BODY DIAMETER

OVERALL LENGTH

MATERIAL

ing, which is brass.

GENERAL:

This fuze is dangerous to handle if the arming pin is out because it has a heavy stri-ker and a weak creep spring. This fuze should never be used for horizontal, glide or dive bombing if there are any fuzes of the AN-M100 series available. It should never be used for skip or masthead bombing of there are any fuzes of the M112A1 or M115 series available.

OPERATION:

Upon withdrawal of the arming wire from the arming pin, the arming pin is ejected by its spring. The only thing preventing the heavy striker from impinging on the primer at this point is the weak creep spring. Upon impact, the striker block overcomes the creep spring, the firing pin impinging on the primer. The flame from the primer ignites the pri-mer pellet, which in turn ignites the short length of safety fuze which is coiled in the fuze body. The opposite end of the safety fuze is primed with the detonator pellet of black powder which insures the functioning of the upper detonator and lower detonator when the safety fuze has burned its entire length.

EARLY DESIGN:

(1) The original M106 had a longer coil of safety fuze, with a functioning time of 45-60 seconds.

(2) The M106A1 had a reduced functioning time of 8-11 seconds, for masthead bombing.

(3) M106 long was used in the Modified Mark series 2000 lb. G.P. bomb, having an overall length of 31.3 inches.

REMARKS:

If any of these fuzes are found in storage or elswhere in an unarmed condition, they should be carefully checked to as certain that the wire clip preventing the arming pin from being ejected by its spring is in good condition and not rusted or weak. Should this clip or wire through and give way, the arming pin would pop out, leaving the fuze in a dangerous armed condition.

BUREAU OF ORDNANCE HAS DECREED THAT ALL OF THESE FUZES ENCOUNTERED IN NAVAL ACTIVITIES BE DISPOSED OF BY DUMPING IN DEEP WATERS.