In 1959, Chelomey was appointed the Chief Designer of Aviation Equipment. OKB-52, along with designing ICBMs, started to work on spacecraft, and in 1961 began work on a design for a much more powerful ICBM, the
UR-500, although it was rather quickly rejected as impractical to use as a missile. In 1962, Chelomey became an Academician of the
USSR Academy of Sciences, Mechanics Department. Chelomey became
Sergey Korolev's internal competitor in the "Moon race". Chelomey proposed that the powerful UR-500 be used to launch a small two-man craft on a lunar flyby, and managed to gain support for his proposal by employing
Nikita Khrushchev's son, Sergei Khrushchev.{{cite web An argument between
Sergey Korolev and rocket engine designer
Valentin Glushko over personal issues and whether the
N1 should be fueled with
RP-1 /
LOX or
Hypergolic propellant resulted in Glushko and Korolev refusing to work with each other, causing Glushko to instead offer his
RD-253 rocket engine to Chelomey, who adopted it for his
UR-500. On 3 August 1964 the
Central Committee of the Communist Party and the
USSR Council of Ministers adopted and signed Decree #655-268
On Work on Research on the Moon and Outer Space, which redefined Chelomey's and
Korolev's roles in the space program: Korolev was now responsible for development of the
N1, which was chosen to accomplish a
crewed lunar landing, while Chelomei was assigned to the development of the
UR-500 which was chosen to perform a
crewed circumlunar flight. The projects continued to work separately side-by-side.{{cite web The first launch of the
UR-500 (also known as
Proton) took place in early 1965.{{cite web Although it was never used to send cosmonauts to the Moon as Chelomey had hoped, Proton became the staple heavy lift launch vehicle of the Soviet/Russian fleet and would be used over the years for planetary probes, space stations, geosynchronous satellites, and more. Chelomey's OKB also designed
anti-satellite weapons such as
Polyot. Unlike earlier satellites, Chelomey's
Polyot-1 (1963) and
Polyot-2 (1964) were equipped with an propulsion bus which enabled them to change their orbits.{{cite web ==Anti-ship missiles==