A single 3S-90 missile launcher is fitted forward of the bridge and is armed with the Shtil-1 SAM system. The system comprises of the 9M317 (SA-N-11, navalised SA-17) missile and 24 such missiles are carried in a below-decks magazine. Guidance and target illumination for these missiles is provided by four MR-90 Orekh radars, which are connected to a command and control post.
