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Old 12-09-2017, 06:43 PM
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spacerunner spacerunner is offline
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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

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Greetings from Germany
Manfred
Under construction:
Launch Pad 39A with Challenger STS-6 (1:144)

Last edited by spacerunner; 12-11-2017 at 07:04 PM.
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