Space Shuttle: External Tank Assembly
The following group of images show various stages of the process to assemble an external tank beginning with the early stages of welding and ending with roll out of a completed external tank to the Pegasus barge at the dock at Michoud Assembly Facility. Several graphic images show the internal and external views of the Liquid Oxygen Tank, Intertank, Liquid Hydrogen Tank and a completed external tank with thermal protection system.

Image credit: NASA
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