Saturn IB

The Saturn IB was an American launch vehicle commissioned by the National Aeronautics and Space Administration (NASA) for the Apollo program. It uprated the Saturn I by replacing the S-IV second stage, with the S-IVB. The S-IB first stage also increased the S-I baseline's thrust from 1,500,000 to 1,600,000 pounds-force and propellant load by 3.1%. This increased the Saturn I's low Earth orbit payload capability from 20,000 to 46,000 pounds, enough for early flight tests of a half-fueled Apollo command and service module (CSM) or a fully fueled Apollo Lunar Module (LM), before the larger Saturn V needed for lunar flight was ready.

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uprated Saturn I
Saturn, heavy-lift launch vehicle, Stellantis North America, United States, 
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Location: KML, Cluster Map, Maps,

Frameless

Nighttime view of Launch Complex 34, Kennedy Space Center, showing the Apollo 7 (Spacecraft 101/Saturn 205) stack on pad.

S68-48666

The Apollo 7/Saturn IB space vehicle is launched from the Kennedy Space Center's Launch Complex 34

The image shows one of the initial assembly steps of the thrust structure of a Saturn IB launch vehicle's first stage (S-IB).

Apollo S-IB ground control panel

Type	Subtype	Date	Description	Notes	Source
commons	image		Nighttime view of Launch Complex 34, Kennedy Space Center, showing the Apollo 7 (Spacecraft 101/Saturn 205) stack on pad.		Commons
commons	image		S68-48666		Commons
commons	image		The Apollo 7/Saturn IB space vehicle is launched from the Kennedy Space Center's Launch Complex 34		Commons
commons	image		The image shows one of the initial assembly steps of the thrust structure of a Saturn IB launch vehicle's first stage (S-IB).		Commons
commons	image		Apollo S-IB ground control panel		Commons