Type 94 15-kg. substitute.

Type 100 50-kg. incendiary.

Type 97 50-kg. gas.

Color: Natural brass.

Over-all length: 2 1/4 inches (with vanes), (less gaine.)

Over-all width: 1 11/16 inches.

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

Position and method of fixing in bomb: The fuze is screwed into the nose of the bomb and tightened with a spanner wrench. A grub screw is usually present in the nose also.

Components of explosive train: This fuze has an Army gaine with the primer in the gaine. The striker enters the gaine, pierces the primer and sets off the exploder assembly.

Fuzes likely to be found with: Probably none; may be fitted to bomb with an Army tail fuze.

Delay time: None.

Threads: 1 5/32 inches diameter, 13 threads per inch.

Description: The fuze body houses the striker and the arming spindle. Vanes are screw-ed onto the arming spindle which projects above the body. No shear wire is used. After arming, the striker is kept away from the gaine by means of a spring. A U-shaped wire secures the vanes during transot, and it is removed only after the fuze is in the plane. A stop stud is formed on the body and on the vane cap, and these prevent the vanes from being jammed against the fuze body.

Operation: Upon release from the plane, an arming wire is withdrawn from the holes in the vanes and the latter rotate and fall free. Upon impact with the ground, the striker is pushed in against the action of the spring and the firing pin pierces the primer which is located in the gaine.

Remarks: Fuze generally used in bombs requiring detonation at ground level such as in-cendiary, antipersonnel, and gas.

Figure 93 – A-2 (b) Bomb Fuze.