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11D452

Engine

Original archive entry. The text, images and links below are kept as they were written.

Isayev liquid propellant rocket engine, providing maneuvering and and retrofire propulsion for the Zenit-6 and Zenit-8 spy satellites.

The new Isayev engine (11D452) was introduced on Zenit-6 and a slightly modified version of that (11D452A) flew on Zenit-6U and presumably also on Zenit-8.