Manufacturer Name: RD-0107. Government Designation: 8D715K. Other Designations: RD-461, RO-9. Designer: Kosberg. Developed in: 1958-62. Application: R-9, Molniya 8K78, Voskhod 11A57 stage 3. Used on stages: Molniya 2. Propellants: Lox/KeroseneThrust(vac): 30,380 kgf. Thrust(vac): 297.90 kN. Isp: 326 sec. Burn time: 250 sec. Mass Engine: 410 kg. Diameter: 0.6 m. Chambers: 4. Chamber Pressure: 68.20 bar. Country: Russia. Status: Out of Production. References: 177 . Comments: Gas generator cycle.