Shtil is a Soviet ballistic missile that, in 1998, carried the first submarine-launched satellites, the 8-kilogram Tubsat-N and the 3-kilogram Tubsat-N1, into low Earth orbit. A three-stage, liquid-fueled missile, the Shtil 1 uses its warhead fairing to hold the spacecraft. The Shtil 2 has a larger separating fairing that can hold bigger payloads.