This page no longer updated from 31 October 2001. Latest version can be found at KTDU-53

Manufacturer Name: KTDU-53. Other Designations: S5.53. Designer: Isayev. Developed in: 1962-67. Application: Zond 4-7 maneuvering engine. Used on spacecraft: Soyuz 7K-L1, Soyuz 7K-L1E, Soyuz 7K-L1P, Soyuz 7K-L1S. Propellants: Nitric acid/UDMH Thrust(vac): 417 kgf. Thrust(vac): 4.09 kN. Isp: 280 sec. Diameter: 2.5 m. Length: 1.1 m. Chambers: 1. Chamber Pressure: 39.20 bar. Oxidizer to Fuel Ratio: 1.85. Country: Russia. Status: Out of Production. References: 321 . Comments: Spacecraft maneuvering engine, derivative of KTDU-35 without back-up engine. .
Back to Index
Last update 12 March 2001.
Definitions of Technical Terms.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .