TM 9-1345-203-12
(h) Restore mine to original condition
Mine, Antitank: HE, Heavy, M21, with Fuze,
and repackage in original packing.
(i) Mine may be reused provided
a. Casualty Effect and Danger Area.
neither fuze nor mine shows
(1) Mine M21 is used primarily for destroying
evidence
of
damage
or
heavy tanks and heavy tracked and
wheeled vehicles.
g. Emplacement Life. Emplacement life of mine
(2) The mine derives its effectiveness from
M19, calculated to 70% effectivity, in various
the action of a steel dish, in the mine,
environments, is as follows:
being driven through a tank's belly armor
by the detonation of the high-explosive
Environment
Emplacement life (months)
charge of the mine underneath it.
Temperature zone
(3) The blast effect will damage/destroy tank
clay soil
55
treads.
Temperature zone
(4) Casualties and injuries to personnel will
sandy soil
75
result from the blast effect and the
Tropic zone
spalling of the tank armor when it is
with heavy rainfall
9
penetrated by the steel dish.
