Figure 1-37. Detonating cord priming of plastic explosive.
The most common method is to tie a Uli-knot as previously described. Insert the knot into a block of explosives
or a molded piece of explosives. For positive detonation, ensure that there is at least one-half inch of explosive on
all sides of the knot.
Another method is to use a triple roll knot. Double back the detonating cord to form a loop. Cross the free end of
the cord over the main line, and wrap three loops around the main line only, bringing the free end through the
loop each time. Work the knot down into a tight ball. Insert the knot into a block of explosives or a molded piece
of explosives. For positive detonation, ensure that there is at least one-half inch of explosive on all sides of the
If two or more blocks of plastic explosives are to be detonated, an overhand knot may be used. An overhand knot
is formed by doubling the detonating cord back on itself to form a loop. Take the end of the first loop and fold it
back over the doubled detonating cord to form a second loop. Wrap the first loop over the two strands of
detonating cord, and bring the end of the first loop through the center of the second loop. Pull the knot tight.
The last task to be accomplished at the explosive site is charge emplacement. Charges should be placed in direct
contact with the material to be destroyed whenever possible. Refer to the DMWR for ideal placement locations.
Figure 1-38 shows common charge emplacements.