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RD-852
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Manufacturer Name: RD-852. Designer: Yangel. Developed in: 1958-63. Application: R-16 (SS-7) stage 2 attitude control engine. Propellants: Nitric acid/UDMH. Thrust(vac): 48.250 kN (10,847 lbf). Isp: 255 sec. Burn time: 143 sec. Mass Engine: 133 kg (293 lb). Diameter: 2.95 m (9.67 ft). Length: 2.40 m (7.80 ft). Chambers: 4. Chamber Pressure: 66.20 bar. Oxidizer to Fuel Ratio: 2.40. Thrust to Weight Ratio: 36.99. Country: Ukraine. Status: Out of Production. Four thrusters are each gimbaled in one single axis.
Bibliography and Further Reading - Shnyakin, V N, Shidkostnye Raketye Dvigateli - Opisanie i Osnovnye Tekhnicheskie Dannye, GKB Yuzhnoe "Yangel", Dnepropetrovsk 1996 via Dietrich Haeseler.
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