S-IVB
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The S-IVB was the third stage on the Saturn V and second stage on the Saturn IB launch vehicles. Built by the Douglas Aircraft Company, it had one J-2 rocket engine. For lunar missions it was fired tw
S-IVB-206 which was used for the Skylab 2 flight
Cutaway drawing of the Saturn V S-IVB
Apollo 7 S-IVB in orbit over Cape Canaveral
Distant view of Apollo 7 S-IVB stage
Skylab
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Skylab was the United States' first space station launched by NASA, occupied for about 24 weeks between May 1973 and February 1974. It was operated by three trios of astronaut crews: Skylab 2, Skylab
S-IVB
…monomethyl hydrazine as well as compressed helium to pressurize its propellants. A surplus S-IVB tank, serial number 212, was converted into the hull for Skylab, the first American space station. Skylab was launched on a Saturn V on May 14, 1973, and it eventually reentered the atmosphere on July 11, 1979. A…
Skylab as photographed by its departing final crew (Skylab 4).
Skylab configuration as planned
Von Braun's sketch of a Space Station based on conversion of a Saturn V stage, 1964
The floor grating of Skylab under construction