: Turning an old sub into a habitable space or a tourist attraction is a monumental task. To make a Barbel-class sub sea-ready for civilians could cost an estimated $1.5 billion due to the need to replace military-spec equipment with civilian-certified systems. Alternative Uses
Buying an old military submarine is a complex process that ranges from purchasing a historic vessel for preservation to navigating the strictly regulated market of decommissioned naval assets. While a civilian cannot legally purchase an active-duty or nuclear-powered submarine, there are avenues for acquiring older, conventional diesel-electric models for specific purposes like museums or private collections. buy old military submarine
The market for military submarines is divided by technology and intent. Nuclear-powered submarines (such as the U.S. Virginia-class or British Vanguard-class) are never sold to the public because their propulsion systems and materials remain highly classified and hazardous. : Turning an old sub into a habitable