Northrop Grumman/DARPA's long-range submarine drone shaped like a robotic Manta Ray with the ability to go dormant on the seabed and recharge itself is probably going to end up as an Ace Combat villain
I'm back! Give me a day or two to unpack, but I'll get back to work when I'm ready to go. In the meantime, here's something that I was working on before I left.