Indian launch vehicles initiated in 2006 under a joint Indian-Ukrainian project named "Jasmine". The engine blue prints supposedly transferred by Ukraine to India, have been identified as the RD-810. Since the transfer specifically excluded engineering analysis methods and software, the Indians did, in fact, had to develop most technologies and engineering models to manufacture and certify the engine. Given the practically identical specifications to the RD-810, and the fact that even the Indians used the Yuzhnoye renders of the engine in their presentations, it can be considered at least heavily influenced by the RD-120. YF-100 and YF-115 During the 1990s, the Chinese acquired two or three models of the RD-120, and possibly some documentation. This enabled them to bootstrap their indigenous kerosene staged combustion engine program, the YF-100 and YF-115. According to a WikiLeaks cable dated, September 28, 2007, the Ukrainian government denies any involvement of Ukrainian industry in that transfer, and states that no involvement, at least until 2007, had happened with the Chinese 11th nor 4th Academy regarding the transfer of RD-120 technology. As was the same case with the Indians and the RD-810, the transfer of the physical engines and blue prints only help in the development. But the development required ten years of research, requiring the mastering of 70 key technologies, the development of 50 new materials and the construction of 61 sets of engines with a combined total of more than 40,000 seconds of ignition time by 2013. Derivatives comparison See also NPO Energomash – Engine designer. Yuzhmash – Engine manufacturer. Zenit – Launch vehicle that used the RD-120 as second stage. YF-100 – Chinese engine that supposedly is based on the RD-120 technology. RD-810 – Ukrainian engine based on the RD-120 technology. SCE-200 – Indian engine supposedly based on RD-120 technology. References Notes External links NPO Energia RD-120 page Yuzhmash RD-120 page Rocket engines of Russia Rocket engines of the Soviet Union Rocket engines using kerosene propellant Rocket engines using the staged combustion cycle Energomash rocket engines Yuzhmash rocket engines