Sergey Korolev (also transliterated as Korolyov) was the head of the principal design group; his official title was "chief designer" (a standard title for similar positions in the USSR).
Serghei Koroliov a fost șeful principalului grup de proiectare; titlul său oficial era „proiectant-șef” (un titlu-standard pentru posturi similare în URSS).