Vietnam is the main operator of the class with its navy having commissioned 4 frigates - twice the size of Russia's Project 11661 inventory - and having plans to order at least 2 more.
They are equipped with fin stabilizers and twin rudders, and can use either gas turbines or diesel for propulsion in a CODOG configuration.
In October 2015, Dagestan, in company with three other Russian Navy ships serving with the Caspian Flotilla, launched cruise missiles at targets in Syria.
[2] On 6 November 2024 an A-22 drone from the Armed Forces of Ukraine struck the Kaspiysk naval base and reportedly damaged both Tatarstan and Dagestan as well as one Buyan-class corvette.
[9] A further two ships are being considered to bring the total order up to six vessels, and that potential acquisition is likely being stalled due to sanctions towards Russia as a result of the Ukrainian conflicts.