Part 2 - Pistols, Fuzes, and Detonators; Chapter 3: Nose Fuze No. 873 Mk I (Service)Part 2 - Pistols, Fuzes, and Detonators; Chapter 3: Tail Fuze No. 880 Mks I and II (Service)
BRITISH EXPLOSIVE ORDNANCE
Part 2 - Chapter 3
Fuzes

Nose Fuze No. 874 Mk I (Service)

Data
Bombs used in 250-lb. T.I. No. 8
Action Instantaneous on impact
Armed condition When the vanes and vane cap are off

Description: The pistol consists of a vane cap, body, striker guide, and detonator holder. It is similar in principle to the Pistol No. 45. The main constructional differences between the fuze and pistol are that the fuze includes a detonator, and has a brass adapter to permit it to be threaded into the nose of a T.I. bomb.

Operation: The safety pin is removed when the bomb is loaded aboard the plane. Upon release, the arming vanes rotate up and off the fuze body, thus arming the fuze by exposing the diaphragm and retaining disc. On impact, the diaphragm is reversed by the compressed air beneath the fuze, and the striker is driven into the detonator.

Figure 172 - Nose Fuze No. 874 Mk I

Part 2 - Pistols, Fuzes, and Detonators; Chapter 3: Nose Fuze No. 873 Mk I (Service)Part 2 - Pistols, Fuzes, and Detonators; Chapter 3: Tail Fuze No. 880 Mks I and II (Service)