British nuclear submarine breaks records of 217 days; A long-term mission in the "metal cage".
The British Navy's nuclear submarine HMS Vengeance set a record of 217 days of continuous underwater presence, making it the longest nuclear patrol mission in that country's history. The unprecedented mission, which exceeded the Navy's design standards, has reignited serious debate about the psychological stress on crews, logistical constraints and the wear and tear on Britain's nuclear submarine fleet.
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