Saturn INT-21

Saturn INT-21 featured image

Short answer

Saturn INT-21 was a two-stage version of Saturn V. NASA used it once to launch Skylab, the first American space station.

Status
retired
Manufacturer
National Aeronautics and Space Administration
Height
80.00 m
Diameter
10.00 m
Mass
2200000 kg
Payload to LEO
77000 kg
Stages
2