Redukovaná vzdálenost od čelní stěny

Scaled distance calculation for the blast explosion on the front facing wall

Z = \frac{R}{\sqrt[3]{W}} = \frac{50 ft}{\sqrt[3]{500 lb}} = 6, 3 \frac{ft}{{lb}^{1 / 3}}

R	Distance from the element to charge
W	TNT equivalent charge weight