. . . "R-7 rockets" . "R-7 (rocket family)#Korolev Cross" . "R-7" . . . . . "Soviet R-7 (later Soyuz) family" . . . . . "R-7 (rocket family)" . "R-7 family" . . . . . . "Soviet model" . "successors" . . . "derivatives" . "R-7 11A511" . . . . . . . . "R-7 (rocket family)" . "R-7 rocket family" . . . . . . . . "R-7 family of launchers" . . "dropped away from the core vehicle" . "Korolev cross" . . "R-7 rocket" . . . . "R-7 space launchers" . . . . "R-7 Semyorka" . "R-7 series" . "R-7 (rocket family)#Korolev_Cross" . . .