Figure 2-20.
Deliberate Soviet Minefield Pattern.
b. Antitank Obstacles.
(1) Antitank ditches. Because of its width, depth, and extensive spoil
marks, the antitank ditch is another easily recognizable defensive feature.
On vertical, positive images, the ditch will usually appear as a dark
straight line with light-shaded shoulders (Figure 2-21).
(2) As is the case with all obstacles, gun positions are usually located
nearby in positions which will allow fire to be placed along the entire
length of the ditch. Constructed by manual digging, blasting, or mechanical
excavation, antitank ditches are located to channelize tanks toward guns,
minefields, or natural obstacles. To be effective, the width of the ditch
is at least half the length of the tank being guarded against plus one foot.
Depth is greater than the highest part of the tank tread.
(3) Antitank
ditches
are
constructed
by
digging,
blasting,
or
mechanically excavation across a potential avenue of approach to form a
barrier to vehicles. They are easily identified because of their straight
course and the large amount of spoil distributed on either side.
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IT 0649
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