Position and method of fixing in bomb: Screwed into tail fuze pocket and tightened with spanner wrench.

Components of explosive train: Not known.

Fuzes likely to be found with: None.

Threads: 1 3/64 inches in diameter, 20 threads per inch.

Description: The upper portion of the body acts as a guide for the arming spindle. The lower portion of the body contains the light spring. The firing pin is screwed into the end of the striker. The lower portion of the fuze has a combination spanner ring and detona-tor ring and detonator cup screwed to it. Around the striker, four air vents are drilled. Two vents are also located on the striker collar. These vents allow the striker to move against the primer on impact without any cushion effect caused by the air in the striker channel. The arming vane assembly has eight vanes.

Operation: On release from the aircraft, a U-shaped safety fork is with-drawn from the two holes in the arming spindle. The vanes rotate twelve times and fall free, leaving the striker held back by the light spring. The arming spindle is prevented from rotating by a small locating pin which fits in a key-way in the lower portion of the fuze body. On im-pact, inertia causes the striker to move against the spring and to pierce the primer.

Figure 128 – B-6 (a) Bomb Fuze.