Soyuz MS integrated propulsion system

Soyuz MS integrated propulsion system is the current Soyuz MS spacecraft's combined main-propulsion and reaction-control installation. NASA describes the propulsion compartment as housing the system used for orbital maneuvers, rendezvous and docking, and deorbit burns; its main propulsion and smaller reaction-control system share nitrogen-tetroxide and unsymmetrical-dimethylhydrazine propellant tanks. ESA identifies Soyuz MS as the current version of the crew spacecraft and places the propulsion system in the service module. This record preserves the integrated-system boundary and does not assert individual engine or thruster models or counts; launch-escape and Soyuz launch-vehicle propulsion are excluded.