GURPS 3e/V2e question: Explosive Reactive Armor weight

[Rupert]

Originally Posted by GURPS Fox

Thanks for the heads up. So just look up the armor's surface area and use that?

Largely because of tandem-charge warheads quickly coming onto their own, though the current situation in Ukraine indicates that some serious corruption gutted the ERA on the tanks.

Still, it shouldn't be almost 18 metric tons for 'heavy' ERA on just the turret of the tank if what I currently checking with is any indication.

Even at the rather high 90 pounds per square foot of VX1, that's 400 square feet of coverage. As the tank's total deck area plus frontal area is less than that I very much doubt this.

A quick eye-balling of a T-72 with ERA and doing some maths suggest to me no more than ~160 square feet of ERA, for 160 x 90 = 14,400 pounds, or 7.2 tons.