So far, unfortunately, I had no dimensions of the stringers, but rather I have always tried to estimate it myself. At first, these images helped me, where cracks in the insulating foam on the
Intertank before the
STS-133 had been investigated,
Source: NASA
which were caused by a broken stringer, which can be seen here.
And thus the height of the stringers should be about
2.5''.
Source: NASA
From another image of this study after the repair of this stringer area, then I have determinedthe 1:144 widths of the Stringer (0.3 mm) and the Valleys (0.65 mm), which would be a good basis for scratch building.
Source: NASA
So far so good, but then I've actually found even more detailed information about stringer geometry in another NASA document (ntrs.nasa.gov),
Source: NASA
with which I made this sketch (1:1), which was then supplemented by the 1'' thick foam insulation (red),
And these dimensions with foam insulation could now, if one would like, be taken as a basis for scratch building, which is summarized here again.
Source: NASA
But I still hope that
Michael Key keeps on the line. At first he wanted to know the diameter and the exact position of the
LO2-Feed Line as well as the
Forward SRB Attachment Point) in the Intertank, what I still have to determine.
Source: NASA