Thickness of armour

The value is the sum of the thicknesses of 1st and 2nd armour layer weighted by the number of wires in case of wired armour.

Symbol
$t_{ar}$
Unit
mm
Formulae
$\frac{t_{a,1} n_{a,1}+t_{a,2} n_{a,2}}{n_{ar}}$wires
$t_{a,1}+t_{a,2}$TECK or steel tapes