Anatoliy Daron
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Anatoliy Davidovich Daron (26 April 1926 – 24 June 2020) was a Russian rocket engineer and scientist, who created the engines for the rockets that delivered the first satellite and the first Soviet cosmonaut, Yuri Gagarin, into space.
Daron made a significant contribution to the development of the first experimental chambers KS-50 and ED-140. He was a leading designer in the development of the RD-107 and RD-108 liquid-propellant rocket engines for the R-7 rocket family, as well as the RD-270 for the UR-700 launch vehicle.