DESCRIPTION. Although this fuze has not as yet been recovered, its existence has been ascertained from examination on many captured enemy documents.

The fuze is an antidisturbance fuze, depending on position, with a chemical long delay of from 4 to 30 hours as a self-destructive device. The fuze has the same appearance as the (41) A fuze, with small differences in the spindle and the fuze head. The fuze is par-tially armed by the rotation of the arming spindle, and is fully armed after about 5 minu-tes, when the celluloid plate on the short delay striker dissolves. If the bomb remains without disturbance, the long delay mechanism comes into operation as a self-destruc-tive device.

The fuze can be used in the SD 2 B ("Butterfly bomb"), which has a bayonet type fitting for the fuze.

Employment of this fuze against a retreating enemy is forbidden because of the danger to own troops. Like the (70) B fuze, it is to be used against targets behind the front line for harassing effect only.