In summer 1991 the sub carried out a patrol, having achieved the Navy’s record in trailing foreign submarines – over 14 days.

K-322 Kashalot
http://rusnavy.com/nowadays/strength/submarines/kashalot/

In Sept 10 – Nov 25, 1991 the sub carried out a patrol, having shown the record time of continuous trailing foreign submarines – 380 hours.

K-391 Bratsk
http://rusnavy.com/nowadays/strength/submarines/bratsk/

Can anyone provide more info about these?

Two 7MW multipurpose salvage vessels of project MPSV06, the Beringov Proliv (Hull No 217) and the Murman (Hull No 218), built for FSI Sea Rescue Service of Rosmorrechflot (Federal Marine and River Transport Agency of Russia) were undocked at Nordic Yards (Germany) on January 18, 2015, press center of Rosmorrechflot says.

The vessels are to be delivered to FSI Sea Rescue Service of Rosmorrechflot and put into operation in March 2015.

http://en.portnews.ru/news/193598/
http://www.ship-technology.com/projects/project-mpsv06—ice-breaking-rescue-and-salvage-vessel/

Those are very nice and useful ice-breaking rescue and salvage vessels.

the Volga–Don Canal provides the most direct navigable connection between the Caspian Sea and the Sea of Azov (and hence Black Sea)

Yes I know. Speaking of Caspian Sea and Canals reminded me of recent news which haven’t been posted here.

Tatarstan, Russia based Zelenodolsk Shipyard named after Maxim Gorky today November 6 2014 held a launching ceremony for TPD Sviyaga, a floating transport dock, the shipbuilding company said in a press release.

TPD “Sviyaga” designed by St.Petersburg based Almaz Central Marine Design Bureau is a special-purpose ship. The vessel is intended for transportation of ships and to perform dock inspection of hulls. The Sviyaga will provide repair and maintenance of ships of the Russian Navy’s Northern Fleet. The floating dock will be transporting ships on inland waterways from north to south.

Now submarines, without heading into the open ocean, can travel within the country from the White Sea to the Baltic Sea, from the Baltic Sea to the Black Sea, and from there on to the Caspian Sea. This naturally increases the Russian Navy’s mobility.

http://en.portnews.ru/news/190069/
http://7fbtk.blogspot.fi/2014/11/xlt-sviyaga-transport-dock-launched-for.html

It would be pretty interesting to see a couple Ladas in the Caspian Sea in the future but I doubt that will happen anytime soon since there is no need for subs and the northern part of Caspian Sea is very shallow. But things might change of course. The middle and the Southern parts of Caspian sea would suit very well for subs since the sea is deep or very deep there.

3rd project 21631 ship will join the navy tomorrow.

Do not really know why Russia is planning to build so many of these ships to the Caspian sea because these ships would be very useful in the Baltic sea and also in the Black sea. It is always a good thing to be prepared but why build so many ships to the Caspian sea when Russia could bring more ships from the black sea to the Caspian sea if needed.

India’s quest for a secure seaborne nuclear deterrent is set for a giant stride when its first indigenously constructed nuclear submarine the INS Arihant begins sea trials next week.

Naval sources indicated a casting-off date of Monday, December 15, and preparations are currently underway at the Shipbuilding Centre, Visakhapatnam to ensure a smooth sail out for the 6,000-tonne nuclear powered ballistic missile submarine (SSBN).

“It will be a surfaced sortie, but a great milestone nevertheless,” naval officials told India Today.

http://indiatoday.intoday.in/story/indigenous-nuclear-powered-submarine-ins-arihant-sea-trials-navy-ballistic-missile/1/406718.html

Admiral Kasatonov launched.

According to recent news Amur shipyard will build four 20380s. Any news or rumors about when Sovershennyy will be launched?

A new pic of the 4th type 071 LPD.