Sergei Konstantinovich Tumansky was a designer of Soviet aircraft engines and the chief designer in the Tumansky Design Bureau, OKB-300. He worked in TSIAM (1931-38 and in 1940), at the aircraft-engine plant N 29, in Leah.
He also worked as a substitute main designer in OKB A.A. of mil'kumova beginning in 1943.Sergei Tumansky was born in Minsk, then a part of the Russian Empire, on May 21, 1901 and died, at age 73, in Moscow, Russia, then a part of the Soviet Union, on September 9, 1973.
Tumansky was a specialist in the field of mechanics and machine building. He was a corresponding member of the Soviet Academy of Sciences for the department of mechanics and control processes from 26 June, 1964, and then academician for the department of mechanics and control processes (machine building) from 26 November, 1968.