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Views of a different pair of secondary tubes (aft of the bifurcation joint). This end is the end which would have been fitted into the fuel return manifold.

Picture 1 of 2.

The pair of tubes, still brazed together, are approximately 71.25" long (including the portion which would fit into the fuel return manifold and into the single primary tube at the bifurcation joint) and weigh (wet) a combined total of 1.967 pounds. They're incredibly light for their size, and I almost launched them when my host told me to pick them up (because I was expecting them to be much heavier).