Description
The Nose Fuze M1 is screwed into the side of the nose of the Bomb AN-M69. When assembled, the two arrows on the top of the fuze case must be parallel to the longitudinal centerline and point aft. This is necessary in order that the fuze will fire on nose impact. The fuze consists of five main parts; namely, a die-cast aluminum fuze base, a striker of the same material, a primer cap, a lead coated spitter fuse (60% black powder - 40% collodion) and a booster charge consisting of 1.2 grams of black powder. The booster cup is a transparent nitrocellulose composition. The entire fuze assembly is contained in a cover of steel tubing. A safety plunger prevents the striker from detonating the primer cap while the bomb is clustered.
Functioning
Upon release from the cluster, the spring-operated fuze safety plunger in each bomb moves outward, thereby arming the fuze. Upon impact, the momentum of the striker carries it forward and causes the striker pin to detonate the primer cap, which, in turn, ignites the lead-coated spitter fuse. The latter requires from three to five seconds to bum. The spitter fuse ignites the booster charge of black powder contained in a celluloid cup in the end of the fuze case. This ignites the igniter-ejector charge of black powder and oiled magnesium powder in the nose cup of the bomb.
Hazardous Components
No information about hazardous components.
See Also
Bomb, 6 lb Incendiary, AN-M69, AN-M69X
Bomb, 10 lb Incendiary, AN-M67
Source(s)
TM 3-400, Chemical Bombs and Clusters (1957)
OP 1664, Volume 2 - US Explosive Ordnance (1947)
USNBD - Bombs and Fuzes, Pyrotechnics (1945)
TM 9-1904, Ammunition Inspection Guide (1944)
