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.

The dry dock overhaul involved dismantling the submarine, replacing components and equipment in poor condition and then reassembling the vessel. Navantia said more than 15,000 pieces of equipment were removed and inspected, as well as its hull.

Mistral is docked at the shipyard for the remainder of the overhaul, which includes completion of assembly and testing at port and at sea.

The vessel is scheduled to be returned to the Spanish Navy in September, Navantia said.

Russian Navy Plans to Assign 30 Helicopters to Each Mistral

Each of the two Mistral class amphibious assault ships being built in France for the Russian Navy will have air wings consisting of 30 Ka-52K and Ka-29 helicopters, Izvestia newspaper reported on Wednesday.

“These will be air wings comprising carrier-based and land-based elements to ensure fast rotation of the helicopters for repairs or replacement due to combat losses,” Izvestia quoted a Defense Ministry source as saying.

A Mistral-class ship is capable of carrying 16 helicopters, four landing vessels, 70 armored vehicles, and 450 personnel.

“The actual number of helicopters on board will vary according to the operational tasks,” the source said.

Prototypes of a naval version of the Ka-52 Alligator attack helicopter are under construction at the Progress plant in Russia’s Far East. The flight tests are expected to start in 2014.

Ka-29 Helix has been originally designed for the Soviet navy as a dedicated assault transport helicopter, and its adaptation for Mistrals will be less time-consuming and costly.

Russia and France signed a $1.2-billion contract for two French-built Mistral class ships, including the transfer of sensitive technology, in June 2011. Two more ships are expected to be 80% built in Russia, 20% in France.

The first Mistral class warship is expected to be put in service with the Russian Navy in three years.

The Russian military has said it plans to use Mistral ships in its Northern and Pacific fleets.