Length of lay of armour

The value is the average of the length of lay of 1st and 2nd armour layer weighted by their thicknesses.

Symbol
$p_{ar}$
Unit
mm
Formulae
$\frac{p_{a,1} t_{a,1}+p_{a,2} t_{a,2}}{t_{ar}}$
Related
$p_{a,1}$
$p_{a,2}$
$t_{a,1}$
$t_{a,2}$
$t_{ar}$
Used in
$H_1$
$H_2$
$\phi_{ar}$