Searching for details: The author of this page will appreciate
comments, corrections and imagery related to the subject. Please
contact Anatoly Zak. With the disintegration of the USSR in
1991, developers of the Soyuz rocket, along with the rest of the
nation's space industry, wanted to consolidate its subcontractor
network inside the Russian Federation. To accomplish the goal,
TsSKB Progress in the city of Samara, developed a new version of
its workhorse Soyuz launcher, under research and development
plan dubbed Rus.According to the upgrade plan, the Soyuz-2
rocket would sport a brand-new RD-0124 (14D23) closed-cycle
engine on its third stage. The 30-ton-thrust RD-0124 engine
developed for the Soyuz-2 launcher would have roughly same
dimensions (height: 2,327 millimeters, diameter: 1,470
millimeters) and the basic design as the veteran RD-0110 engine
on the third stage of the previous Soyuz rockets. The main
difference would be the introduction of the so-called closed-
cycle system, where oxidizer gas used to