It is based on the R-29RM designed by State Rocket Center Makeyev and related to the Volna Launch Vehicle.
(Rockets such as the Shtil-3a, which offers costs as low as $400/kg, rarely launch but it has a comparatively small payload, and is partially subsidized by the Russian navy as part of launch exercises.
R-29RM Shtil | Shtil' |
The frigates are armed with a new 3M-54 Klub attack anti-ship system with a vertical missile launcher, Shtil-1 multi-channel medium-range surface-to-air missile system (an export version of the SA-N-12 "Grizzly"), a Kashtan anti-aircraft missile and artillery system, a RBU-6000 depth charge launcher and Puma-Universal artillery system.