Most of the classified and even the Secret info is on the Internet somewhere for anybody to access. As for design specs. A little figuring knowing the pressure hull thickness, the steel allow and the placement of stiffenng ribs. Any hughschool student can figure dive capability within a 100 feet give or take. Reactor power, steam generator size/surface area, material and thermal output is just a few calculations. The laws of physics are not a secret.
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