"Boris Viktorovich Rauschenbach (Russian: Бори́с Ви́кторович Раушенба́х, romanized: Borís Víktorovič Raušenbách; born Boris-Ivar Rauschenbach; 18 January [O.S. 5] 1915, Petrograd – 27 March 2001, Moscow) Russian physicist of German ethnicity who worked as an engineer in the former Soviet space program.
Trained as an engineer, he found great success in designing rockets and who developed the theory and instruments for interplanetary flight control and navigation in 1955-1960s. He is also notable for his studies in Christian theology and theory of Art." - (en.wikipedia.org 19.09.2023)