At the end of 2019 operation of these carrier rockets will be complete, the head of Roskosmos Dmitry Rogozin has written to Twitter. "Union-FG" will be succeeded by "Union-2.1.a". Whether replacement is connected with recent accident? Carrier rocket to "Union-FG". Photo: Egor of Aleev/TASS Roskosmos will finish operation of the carrier rocket "Union-FG" at the end of 2019. About it the CEO of state corporation Dmitry Rogozin has written to Twitter. He has noted that since 2020 the Union of MS spaceship will put "Union-2.1.a" to orbit. At the same time at both spaceports operation of a rocket "Union-2" of various modifications, including on Baikonur in the piloted option with the Union of MS ship continues. At the end of 2019 operation of RN "Union of FG", since January, 2020 comes to the end. "The union of MS" will fly on RN "Union-2.1.a" — Dmitry Rogozin (@Rogozin) on November 11, 2018 on October 11 there was an accident of the carrier rocket "Union-FG" to the piloted Union of MS-10 ship, but the reason of "resignation" of the carrier rocket isn't connected with this incident. It is planned replacement, the observer of the "kosmonavtiki Novosti" magazine Igor Lisov: says — Modernization of a rocket "Union" has dragged on for 20 years, "Union-FG" was one of the first stages on this way. The letters "FG" mean that on her engines new forsunochny heads have been established. After that there was a series of rockets "Union-2": the Ukrainian control system has been replaced with the Russian version, new improvements are entered. As "Union-FG" was managed to be zasertifitsirovat for the piloted flights, practically all "Unions" flew to them. When, at last, "Union-2" (has become possible to transfer to it the piloted ships) has been put into operation, for "Union-FG" in the market there is no niche left. — The Ukrainian control system has played a role here? — I think, no as all "Unions" fly to the ISS according to the program, joint with Americans. This strict requirement of the American side to the Ukrainian producers: not to arrange any focuses, to release everything as it is necessary under the contract. — How there are a lot of rockets "Union-2.1.a"? Do we have passed enough tests? — They fly since 2004, however, not often, few payloads were for this purpose. In principle, reputation at them quite good. At the same time the rocket "Union-2.1.a" has no cardinal changes, the expert of space branch, the former designer of experimental design bureau Vadim Lukashevich:vadim Lukashevich the expert of space branch considers, the former designer of experimental design bureau "Fastening of the block of the first step to the second is identical on "Union-FG" and "Union-2.1.a". "Unions", actually, very good and reliable, they were always a working horse of the Russian astronautics. They are so debugged in production that all changes are made gradually and accurately, there are no cardinal things. The fact that the rocket flies not with today and not with tomorrow, and earlier (we only in 2019 pass to the piloted start-up), says that starts of automatic and pilotless devices have gained reliability necessary for the piloted starts". Carrier rocket "Union-FG" for all the time of an eksplu
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