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dsc74221.jpg

View of the Saturn IB-style auxiliary propulsion system (APS) unit on the back side of the stage.

Picture 2 of 4.

The Saturn V APS unit was substantially larger and had more thrusters than the Saturn IB APS unit seen here.

This stage was not manufactured as a flight article, but rather as the dynamic test stage. It was fitted with dummy mass simulators rather than actual APS modules. Presumably, MSFC did not have any spare Saturn V APS modules when this stage was prepared for exhibit at the museum but did have Saturn IB APS modules.

 
Saturn V S-IVB (Third) Stage (Davidson Center) auxiliary propulsion system (APS) module at U.S. Space and Rocket Center
Time picture taken Fri Jul 2 12:11:04 2010
Location picture taken Saturn V Hall
Davidson Center for Space Exploration
U.S. Space & Rocket Center
Huntsville, AL
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