Apollo AS-203 - Space launch mission detailed information
Apollo AS-203 203
5 JUL 1966
National Aeronautics and Space Administration
Space Launch Complex 37B
The purpose of Apollo 203 was to check out the behaviour of the fuel inside the Saturn-4B stage in weightlessness, which was crucial to allow the reignition of the stage.
The Saturn IB (pronounced "one B", also known as the Uprated Saturn I) was an American launch vehicle commissioned by the National Aeronautics and Space Administration (NASA) for the Apollo program. It replaced the S-IV second stage of the Saturn I with the much more powerful S-IVB, able to launch a partially fueled Apollo Command/Service Module (CSM) or a fully fueled Lunar Module (LM) into low Earth orbit for early flight tests before the larger Saturn V needed for lunar flight was ready.