What is the main bottleneck in building modern nuclear-powered submarines?
Short answerFunding, reactors, and yards matter, but shortages of welders and electrical workers also limit how quickly complex submarine systems can be installed.
NotesNuclear-submarine production depends on funding, reactors, suitable yards, and skilled trades. Welders must reach cramped spaces that automated systems cannot cover. One estimate offered here is that new welding automation could remove about half the welds needing human work, while leaving those awkward jobs to specialists. Electrical installation presents another constraint because submarines contain extensive cabling and increasingly use electric drive. Their many tanks and pipes must also remain correctly separated, especially where fuel is involved.