Navantia overhaul of submarine almost complete

Spanish shipbuilder Navantia has floated the Spanish navy's S-73 submarine, the Mistral, after finishing 80 percent of its dry dock overhaul.

Dry dock work on the vessel is being conducted at the company's shipyard in Cartagena and, when completed, will give the submarine another five years of service life.

The S-73 is a diesel-powered vessel with a surface speed of 12 knots and a submerged speed 10.5 knots. It entered service with the Spanish navy in 1977.

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