Note 170 — THE FORMAL TACTICS OF INFANTRY. (continued 3)

The computation of beaten zones is based upon the formula deduced by Lieutenant-General Rohne in his work Schieszlehre für Infanterie, p. 127:

Let α = angle of fall; γ = angle of slope (rising or falling); β = beaten zone on level ground; then α α - γ β = beaten zone on falling ground; α α + γ β = beaten zone on rising ground.