Type 94 50 and 100-kg.

Type 94 50 and 100-kg. (special).

Type 3 50 and 100-kg.

Type 1 and 2 30-kg. substitute.

Color: Natural brass.

Over-all length: 2 3/4 inches.

Over-all width: 1 21/32 inches.

Material of construction: Brass except steel spring and steel firing pin.

Position and method of fixing in bomb: Nose fuze screwed in by hand and tightened by spanner wrench.

Components of explosive train: Primer flash cap ignites a short delay train, or passes through the selector to give instantaneous action by igniting a realy which sets off the gaine.

Fuzes likely to be found with:

B-1 (a) tail fuze.

Delay times:

Short delay time (unknown).

Threads:

1 5/32 inch diameter 13 threads per inch.

Description: The upper body portion houses the striker and arming spindle while the lo-wer body portion contains the selector mechanism for instantaneous of short delay. A shear wire and spring hold the arming spindle after the vanes fall away. A U-shaped safety wire fits over the vanes into the holes. A selector screw is fitted in the fuze body and cannot be changed while the fuze is fitted within the bomb. A stop stud on the body and one on the vane cap prevent the arming vane assembly from jamming too tightly. The Regular Army gaine is fitted to the fuze.

Operation: The arming wire is withdrawn from the vanes upon release of the bomb and after 10 revolutions, the vanes fall free. On impact, the wire is sheared and the striker is forced inward against the action of the spring. If the selector switch is set for instanta-neous action the flash from the primer passes directly through the open channel to fire a relay which fires the gaine. If the switch is set for delay action, the flash channel is clo-sed and the primer ignites the delay element which in turn fires the relay and the gaine.

Remarks: If the fuze is found with the arming spindle depressed, the striker is probaly imbedded in the primer and a slight movement may free it, and the spring will force the striker back. This friction may be sufficient to set off the primer, thereby igniting the ex-ploder system. Could be used in 15-kilogram antipersonnel, 50-kilogram incendiary, and 50-kilogram gas bombs.

A-2 (a) has been found with a short black power gaine extending only 11/32 inch below the fuze body.

Figure 92 - A-2 (a) Bomb Fuze.