Labels:text | screenshot | font | diagram | line OCR: EUS (ENERGIA UPPER STAGE) Truss Thrust Dry mass, tonnes : Approximately 7 Frame Maximum useful propellant mass (tonnes) : 70 Main engine maximum vacuum thrust (kN) : 100 LOX Tank Main engine specific impulse (s): About 490 Maximum number of engine starts: 10 Maximum engine operating life in space: 4 Days LH2 Tank -- 3.7m 16.47m Propellants: 02/H2 Use : For Payload to high orbit: GEO/Planetary Auxiliary Propulsion Engines #Glavkosmos/Space Commerce Corp.