How thick is modern MBT armor (DR 2000)?

[BraselC5048]

Originally Posted by Anthony

The glacis plate on an M1 is apparently about 2" thick, but it's also at an 82 degree angle, so the thickness you'd have to shoot through to penetrate the plate from the front is about 14".

And Here we have what I was looking for! Roughly 14" of composite armor is DR 1680. Reducing to DR 100 per inch for starships due to the armor having several more important considerations than kinetic energy impact, such as radiation protection. Assuming 1.5" thick times armor value, that gives a well protected armor-8 cruiser 12" of armor worth DR 1200, should a situation where that matters ever come up. My current cruiser, fast and heavily armed but with only armor-7, would have 10.5" of armor worth DR 1050, while Admiral Oldenburg's flagship with armor-12 has 18" worth DR 1800. Thanks.

I'll likely adjust it so armor-1 is thicker then 1.5," "grading on a curve," so to speak, so the relationship between armor value and it's thickness isn't quite as simple. At least it has the benefit of only having to work for whole numbers, so I can just make a table. Kind of like how I wound up simply throwing out the radiation numbers and replacing them with the results I wanted, which was easy since after I came up with a few values I discovered it was pretty much armor value squared for number of missile hits per gray.