MOSCOW, October 21. /TASS/. Russia’s Black Sea Fleet will get its fifth and sixth submarine of project 636.3 (Varshavyanka) - The Veliki Novgorod and The Kolpino - on October 25 and November 25 respectively, the CEO of the Admiralty Shipyards, Aleksandr Buzakov, said on Friday.

"Government certification tests of the fifth sub in the family - The Veliki Novgorod - have ended successfully. The sub will be handed over to the Black Sea fleet on October 25. The sixth submarine - The Kolpino - is due to be delivered on November 25," Buzakov said.

This will increase to six the Black Sea Fleet’s group of upgraded project 636 submarines. The four others - The Novorossiisk, The Rostov-on-Don, The Stary Oskol and The Krasnodar - are already in service.

"The Admiralty Shipyards is ready to get down to work on the newly-concluded contracts for building another series of six submarines of project 636 for Russia’s Pacific Fleet," Buzakov said.