Detail of the holes from the outer-dome attach bolts around the periphery of
the LOX dome, where the LOX dome would be
bolted to the thrust
chamber. There are 64 such holes.
Each hole appears to be numbered (on the vertical portion of the LOX dome
behind the holes), although I'm not certain as to the significance of those
numbers. The three bolt holes fully visible in this photo are numbered (from
left to right) "60", "30", and "56"; the partial bolt hole at right starts with
the digit "2". I suppose that it's possible that the bolts should be tightened
in a particular order, not unlike the star
pattern when tightening lug nuts on a car.
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