Manual of military engineering . feet 6 inches high can be usedas it stands. If a wall is less than I feet high, a small trenchcan be sunk on the inside to gain additional cover. Between 5 feet and 6 feet in height a wall can be notched.(PI. 11, Fig. 4.) Above 6 feet in height, a step must be raised inside, toenable men to either fire over the wall, or through notches, orelse the wall must be loopholed (Fig. 5).Loop- 55. Loopholes should not be closer together than 3 feet from holes. centre to centre, and can be made by means of crowbars orpicks. It is desirable to make the opening on the outs
Manual of military engineering . feet 6 inches high can be usedas it stands. If a wall is less than I feet high, a small trenchcan be sunk on the inside to gain additional cover. Between 5 feet and 6 feet in height a wall can be notched.(PI. 11, Fig. 4.) Above 6 feet in height, a step must be raised inside, toenable men to either fire over the wall, or through notches, orelse the wall must be loopholed (Fig. 5).Loop- 55. Loopholes should not be closer together than 3 feet from holes. centre to centre, and can be made by means of crowbars orpicks. It is desirable to make the opening on the outside assmall as possible, to lessen the chance of the entry of the a moderately thick brick wall the loophole may be commencedby knocking out a header from the outside of the wall,the interior dimensions of the loophole being afterwardsvaried with the direction in which fire is to be delivered,In actual warfare a rough hole only can generally be formed, PLat& Jl ^. 1. yt^^g^: NcUaraL DztcTvire rear Fzg. t^ MtturctlliiUhTTV frortt.
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