line (fig. 8-29). This results in omission of wire Nos. 6,

7, and 8, and in bringing all the apron and diagonal wires

much closer to the ground, so passage underneath this

fence is difficult. This fence may be used advan-

tageously on one or both sides of the double-apron

fence. The low-wire entanglement is used where

concealment is essential. In tall grass or shallow water,

this entanglement is almost invisible and is particularly

effective as a surprise obstacle. However, a man can pick

his way through this low-wire fence without much

difficulty; therefore, for best results, it must be used in

depth.

Except for the omission of three wires and the

substitution of medium pickets, this fence is constructed

task normally requiring about 2 hours, assuming 38 men

in the same reamer as the double-apron fence.

per platoon. The two operations are laying out and

installing pickets and installing wire.

This obstacle consists of two parallel 4-strand

fences with a third 4-strand fence zigzagged between

For this operation, divide the working party into two

them to form triangular cells. With two rows of pickets,

groups: two thirds of the men going to the first group

as shown in figure 8-30, the entanglement is classed as

and one third to the second. The first group carries and

a belt; with one or more additional rows of fences and

lays out pickets, front row first and at 10-foot intervals.

triangular cells, it is a band. To add to the obstacle effect,

Second-row pickets are laid out in a line 10 feet to the

install front and rear aprons and place spirals of loose

rear of the front row and spaced midway between them.

wire in the triangular cells.

The first group also lays out an anchor picket in line with

each end of each 4-strand fence, 10 feet from the nearest

A 984-foot section of high-wire entanglement with

long picket. If guys are needed, anchor pickets are also

two rows of pickets, as shown in figure 8-30, is a platoon