Description
Base Detonating Fuze M578 is used with HEP ammunition fired from 105mm gun cannons.
The fuze has a steel body. A steel impact ball is housed in the rear of the fuze body. A spring-loaded striker assembly containing the firing pin is located just forward of the impact ball and is locked when in the unarmed position by setback pins and a spin-activated locking segment. The detonator and escapement mechanism are carried in a spin-activated delayed arming shutter ahead of the striker, and are out of line in the unarmed condition. The booster lead charge and RDX booster charge are contained in a booster cup threaded into the forward end of the fuze body. Earlier models have slightly different exterior configuration.
Functioning
No information about functioning.
Hazardous Components
No information about hazardous components.
See Also
Source(s)
TM 43-0001-28, Artillery Ammunition (chg 11, 2003)
MIL-HDBK-146, Fuze Catalog (1982)
TM 9-1300-203, Artillery Ammunition (1967)
