It’s a beefed up version of AF1, with even more EMP precautions than AF1, including mostly analog computers and copper woven windows
There are several of them, and they contain antenna up to 5 miles long that can be spooled out in a tight circular pattern and send launch signals to submarines even deep under water
I highly highly highly recommend Raven Rock by Garrett M Graff
It’s a beefed up version of AF1, with even more EMP precautions than AF1, including mostly analog computers and copper woven windows
There are several of them, and they contain antenna up to 5 miles long that can be spooled out in a tight circular pattern and send launch signals to submarines even deep under water
I highly highly highly recommend Raven Rock by Garrett M Graff
Thats good though