Vane operated tail fuzes of this type are delay armed and incorporate an antiwithdrawal feature. Approximately 100 feet of air travel is necessary for arming. All fuzes in this group have the same delay rating; they act to detonate the bomb 16 minutes after arming at a temperature of 80° F.
Tail fuzes M132, M133, and M134 differ in overall length so that the same type of fuze can be used in various size bombs. The differences in length are necessary to locate the arming vanes properly in the airstream.
No information about functioning.
Detonator M19A2
MIL-HDBK-146, Fuze Catalog (1982)
TM 9-1385-51, Ammunition (Conventional) for Explosive Ordnance Disposal (1967)
TM 9-1325-200, Bombs and Bomb Components (1966)
OP 2216, Volume 1 - Aircraft Bombs, Fuzes, and Associated Components (1960)
OP 1664, Volume 2 - US Explosive Ordnance (1947)
USNBD - Bombs and Fuzes, Pyrotechnics (1945)