Quote:
Originally Posted by Icelander
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The 10x12" plate weighs 5.5 lbs and protects against .308 rounds, but not 5.56 AP rounds, so call it DR 23. Simple math puts 1 sqft of the stuff at DR 23 weighing 6.6 lbs.
Armor weight is SA x WM x CW x DR. CW of a solid plate is 1, weight is 6.6 lbs, DR is 23, and SA is 1 sqft. A little algebra and the WM of the stuff is 0.286 - call it 0.3 for simplicity. That's better than TL7 titanium alloy or TL8 ultra-strength steel, but not as good as TL8 titanium or polymer composite.
You can do similar math to get the CM, which works out to $20 - which is probably too low. I'm going to arbitrarily double it to account for the difference between a GURPS TL8 $ and 2017 USD.
It's DR 23, and 0.21" thick, so it has DR 109/in. Max DR on a human is 27 for a 1/4" plate.
You can do the same math for the 10x14", soft body plate but I'd just treat it as improved kevlar.
So all that works out to:
Polyurea coated lightweight steel armor: WM 0.3, CM $40, DR/in 109, Max DR 27, Notes -, Construction R/S.
A suit of the polyurea coated lightweight steel plate, worn over a suit of the AR500 Hybrid ballistic weave:
Steel armor: LSA 21.35, WM 0.3, CM $40, CW 0.8, CC 5, DR 24: 123 lbs, $24600
Ballistic weave: LSA 21.35, WM 0.08, CM $120, CW 1, CC 1, DR 10: 17 lbs, $2050.
Since armor weight and cost is linear with DR, we can drop the steel armor to DR 8, reducing the weight to 41 lbs, the cost to $8200, and count on the ballistic weave to catch stragglers. The combination is just over 1/4" thick, weighs 58 lbs, costs $10250, and will stop 5.56mm rounds and significantly slow down .308 rounds.
Unfortunately, you're already breaking the Lord of Darkness cost point. Let me come back on optimizing this stuff - I have some ideas.