Description
Mechanical Time Fuze M571 is designed especially for use with 105mm flechette loaded Cartridge M494.
The fuze consists of an aluminum head, a lower cap containing the timing movement, a body and a detonator holder plug assembly. The rotatable lower cap is inscribed with range graduations in meters and a muzzle action mark for alignment as required with a zero mark on the body. The fuze as issued is set for muzzle action, but any desired range between 200 and 4400 meters can be preset by hand. The movement assembly in the lower cap is a spring-driven clockwork mechanism combined with a muzzle action feature activated by four setback pins and two centrifugal weights (not shown in illustration), utilizing the same firing pin as the time mechanism. The detonator holder located in the fuze body above the closing plug contains Detonator XM87. An interrupter between Relay M7 at the upper end of the body and Detonator XM87 consists of two overlapping centrifugal weights.
Functioning
No information about functioning.
Hazardous Components
No information about hazardous components.
See Also
Cartridge, 105mm APERS-T, M494
Source(s)
TM 43-0001-28, Artillery Ammunition (chg 11, 2003)
TM 9-1300-203, Artillery Ammunition (1967)
TM 9-1385-51, Ammunition (Conventional) for Explosive Ordnance Disposal (1967)
