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Other Designations: Priborno-agregatniy otsek. Part of: Soyuz 7K-L1. Class: Manned. Type: Spacecraft Module. Purpose: Equipment-engine section. Modification of Soyuz 7K-OK basic PAO service module with pump-fed main engines and separate RCS/main engine propellant feed system. KTDU-53 engine with no back-up thrusters, translunar celestial navigation system, and smaller area solar panels in contrast to standard Soyuz configuration. Length: 2.26 m (7.41 ft). Basic Diameter: 2.15 m (7.05 ft). Maximum Diameter: 2.72 m (8.92 ft). Mass: 2,700 kg (5,900 lb). RCS Coarse No x Thrust: 14 X 98 N. RCS Fine No x Thrust: 4 X 98 N. RCS Coarse Backup No x Thrust: 8 x 10 N. RCS Fine Backup No x Thrust: 4 x 10 N roll. RCS Propellants: H2O2. Main Engine: KTDU-53. Main Engine Thrust: 4.167 kN (937 lbf). Main Engine Propellants: Nitric Acid/UDMH. Main Engine Propellants: 400 kg (880 lb). Main Engine Isp: 276 sec. Electrical System: Solar panels span 8.37 m, area: 8.33 sq. m. Electric System: 0.50 average kW. Contact us with any corrections, additions, or comments. Conditions for use of drawings, pictures, or other materials from this site.. To contact astronauts or cosmonauts. © Mark Wade, 1997 - 2008 except where otherwise noted. | |