Table 8-1.--Wlre and Tape Entanglement Materials
of a roll of single-strand, high-strength, spring-steel wire
Table 8-1 lists information pertaining to materials
used in the construction of barbed-wire entanglements.
with four-point barbs attached at 2-inch intervals. Wires
forming the coils are clipped together at intervals so the
concertina opens to a cylindrical shape 16.4 to 49.2 feet
long (depending on structure and build of opening) and
3 feet in diameter. The 16.4-foot length prevents smaller
The standard barbed wire concertina (fig. 8-12) is a
enemy personnel from crawling through the wire
commercially manufactured barbed-wir eobstacle made
because the coils are closer together. Use tanglefoot
(discussed later in this chapter) in conjunction with the
wire to further increase the effectiveness of the barrier.
The concertina is opened and collapsed easily, and it can
be used repeatedly. The wire is much harder to cut than
standard barbed wire. The concertina weighs about 11
The collapsed concertina is tied with plain-wire
bindings attached to the quarter points of a coil at one
end of the concertina. When opening the concertina,
remove these bindings and twist them around the
carrying handle for use in retying the concertina when
it is again collapsed. You need four men to open a
concertina and to extend it to the 16.4- to 49.2-foot
length. Place one man to work at each end and the other
two spaced along its length to ensure that it opens and
extends evenly. When necessary, two men can easily
open a concertina by bouncing it on the ground to
prevent snagging as they open it.
Figure 8-12.--Standard barbed-wire concertina.