The United States Navy’s Seawolf-class attack submarines remain one of the most advanced submarine classes in the world, even though they’re 30 years old. In fact, these subs are called the F-22 Raptor of submarines for a reason—no more can be built, and the US military would love to have more of them. Created to replace the Los Angeles-class attack submarine, the Seawolf-class was never allowed to fully embrace its intended future because Con…