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Overall walk-around of the Block I Saturn I.

Picture 1 of 12.

This picture is taken from the north, looking south.

Referring to the SA-D's orientation, the holddown arm in the foreground is at Pos. II, with LOX tank 2 and fuel tank 2 at center. LOX tank 3 is to the right and fuel tank 1 is to the left.

Note the 4-inch LOX relief valve on the forward skirt of L2.

Also note that the position marking between the engine shrouds have been painted over.