Description
Mechanical Time and Superquick Fuzes M501A1 and M501 are a dual-purpose type used to detonate spin-stabilized projectiles fired from 105mm and 155mm howitzers and from 4.2 in. mortars when a choice of timed or superquick action is required.
The aluminum head of the fuze houses the superquick point detonating assembly consisting of firing pin and support, a detonator, and a lead charge. An interrupter activated by centrifugal force from projectile rotation provides bore safety. The major portion of the movement assembly, providing the timing and firing functions of the fuze, is contained in the brass lower cap. The aluminum fuze body contains the explosive elements consisting of a primer and a relay, and carries the time setting scale graduated from 2 to 75 seconds inscribed on the exterior. The threaded fuze base is assembled directly into the projectile without a booster. A pull wire extending through the body and the setback pin provide safety for shipping and handling.
Functioning
No information about functioning.
Hazardous Components
No information about hazardous components.
See Also
Nothing else to see.
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)
