Description
The Base Fuze Mk 157 Mod 0 is essentially similar to the Base Fuze Mk 146, with the following differences: (1) a 0.02-second delay detonator replaces the non-delay detonator of the Mk 146; (2) the firing pin and the firing pin body are pinned together by a thin lock wire. The Base Fuze Mk 157 Mod 0 has been developed to afford greater penetration of the target than was possible with the non-delay detonator of the Base Fuze Mk 146.
The sensitivity of the Base Fuze Mk 157 Mod 0 is somewhat less than that of the Base Fuze Mk 146. since the percussion-type primers used in delay explosive trains are inherently less sensitive than the "stab" type primer caps used in instantaneous detonators.
The Base Fuzes Mk 157 Mod 0 and Mk 157 Mod 1 are always shipped to the field installed in the base of the rocket.
Functioning
No information about functioning.
Hazardous Components
No information about hazardous components.
See Also
Source(s)
OP 1664, Volume 1 - US Explosive Ordnance (1947)
