The « Gremyashchiy » is the lead corvette in a series of two ships and was laid down on 2012. Its displacement is 2,200 tonnes. It is fitted with 1 x 8 UKSK VLS cells for Kalibr-NK cruise missile systems, 2 x 8 VLS for Redut anti-aircraft systems, 2 x 4 330 mm torpedo tubes for Paket-NK antisubmarine systems and an AK 630M CIWS
According to an additional contract concluded with the Russian Ministry of Defense in 2011, construction of eight more Project 20385 corvettes was supposed to occur at the Severnaya Verf yard by 2020. However, wishes for further improvement of the project and widespread use of imported components, including German MTU diesel engines, blocked after 2014 under sanctions restrictions, led to the decision of the Russian Navy to limit the series to only two ships.
Nonetheless, the Rear Admiral Vladimir Tryapichnikov, head of the Russian Navy shipbuilding department, said at the launch ceremony of “Gremyashchy”, on June 30, 2017, that it was still planned to build two more corvettes, in addition to the two under construction, although the question of the timing of the laying of two more ships will be resolved after successful testing of the lead ship.
The construction of both planned corvettes was strongly delayed due to the non-delivery of the MTU main diesel engines. Integration of Russian diesel engines on corvettes was then carried out and four sets of Russian-made 1DDA-12000 engines were ordered, with delivery from the third quarter of 2016 to the third quarter of 2017.