 the s-ib stage was the first stage of the saturn ib launch vehicle, which was used for earth orbital missions. it was composed of nine propellant containers, eight fins, a thrust structure assembly, eight h-1 rocket engines, and many other components. the propellant containers consisted of eight redstone tanks (four holding lox and four holding rp-1) clustered around a jupiter rocket tank containing lox. the four outboard engines gimballed to steer the rocket in flight, which required a few more engine components. it burned for nearly 2.5 minutes before separating at an altitude of . ==references== 
Rocket_stages