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Above: The RD-0110 engine which powers the third stage of Soyuz rockets.
Intended for the third stage of several rockets in the Soyuz family, including Soyuz-U and Soyuz-FG, the RD-0110 (11D55) engine descended from the RD-0107 engine, which was used on the Voskhod launcher. That engine, in turn, derived from RD-0106, which powered the second stage of the R-9 ICBM. Like most previous engines on upper stages in the Soyuz family, RD-0110 was developed at KB Khimmash (KB Khimavtomatiki, KBKhA) design bureau in the city of Voronezh. Ya. I. Gershkovich led the design team. (145) The engine is mass produced at the Voronezh Mechanical Plant, VMZ.
Equipped with four main combustion chambers, the RD-0110 engine uses a single turbopump, feeding all chambers. The engine was designed to work in conjunction with four steering nozzles with the thrust of 6 kH. While the main chambers are fixed to the frame of the engine, steering nozzles can swivel along a single axis, providing pitch, yaw and course control for the rocket, in addition to giving some extra thrust. (331)
Specifications for the RD-0110 engine:
Page author: Anatoly Zak; Last update: August 30, 2011
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A third stage of the Soyuz rocket. Copyright © 2001 Anatoly Zak
The four-chamber RD-0110 engine, which was used for several decades on the third stage of the Soyuz family of launchers became the focus of upgrades needed to build the Soyuz-2 launcher. Copyright © 2001 Anatoly Zak