KTDU-53

Manufacturer Name: KTDU-53. Other Designations: S5.53. Designer: Isayev. Developed in: 1962-67. Application: Zond 4-7 maneuvering engine. Propellants: Nitric acid/UDMH. Thrust(vac): 4.089 kN (919 lbf). Isp: 280 sec. Diameter: 2.50 m (8.20 ft). Length: 1.14 m (3.73 ft). Chambers: 1. Chamber Pressure: 39.20 bar. Oxidizer to Fuel Ratio: 1.85. Country: Russia. Status: Out of Production.

Spacecraft maneuvering engine, derivative of KTDU-35 without back-up engine.

KTDU-53 used on Spacecraft

Used on: Progress PAO.

Used on: Soyuz 7K-L1.

Used on: Soyuz 7K-L1 PAO.

Used on: Soyuz 7K-L1A.

Used on: Soyuz 7K-L1E.

Bibliography and Further Reading

Glushko, V P (ed), Kosmonavtika Entsiklopedi, Moscow 1985 via Dietrich Haeseler.

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