On May 26, 2006 one of the Project 667BDRM/Delta IV submarines of the Northern Fleet, K-84 "Ekaterinburg", successfully launched a Compass-2 satellite into space. The Shtil launcher that was used in the launch is a converted R-29RM ballistic missile.

This was not a military launch - Compass-2 (Complex Orbital Magneto-Plasma Autonomous Small Satellite) is a scientific satellite, developed at IZMIRAN (Institute of Terrestrial Magnetism, Ionosphere and Wave Propagation of the Russian Academy of Sciences).

The rocket was launched from a submerged submarine at 22:50 MSD (18:50 UTC). The satellite successfully reached its orbit with perigee of about 400 km, apogee of 490 km, and inclination of 78.9 degrees. It was assigned the following catalog number and international designation: 29157/2006-019A.