Russia is sending small missile ships of the Caspian flotilla into the Black Sea, reported bmpd.livejournal.com.
The ships Grad Sviyazhsk and Veliky Ustyug, project 21631 (class Buyan-M), accompanied by an RB-10 raid tugboat, made the trip along inland waterways from the Caspian to the Black Sea.
The Grad Sviyazhsk (plant no. 631, entered into service in the Caspian Flotilla of the Russian Navy on July 27, 2014) and Veliky Ustyug (plant no. 633, entered into service in the Caspian Flotilla on December 19, 2014), the main and third in the small missile ship series of Project 21631, built by the A.M. Gorky Zelenodolsky Shipyard (Tatarstan, Russian Federation). In addition, as part of the flotilla, there is the second small missile ship Uglich (plant No. 632, commissioned on July 27, 2014).
Before this, there was only one small missile ship- the Vyshny Volochyok – from Project 21631 in the Black Sea Fleet.
In addition, two other small missile ships – the Zelyoniy Dol (plant number 634) and Serpukhov (plant number 635) – are part of the Baltic Fleet.
The ships are armed with Kalibr cruise missiles, which were previously used in Syria. The tactical and technical data of the missiles are classified. According to some sources, the range when firing at sea targets is about 375 kilometers, and at ground targets it is up to 2,600 kilometers.