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Old 07-15-2018, 04:38 PM
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spacerunner spacerunner is offline
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Join Date: Apr 2012
Location: Filderstadt, Germany
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Hi everyone,

since I now know from two experts that I chase after no phantom, now a next step for the implementation of this wave-like ring structure on model ET.

As I've said already, there are these two discussed possibilities, either by a 3D printing, if Michael Key finally would have time and desire, or by Scratch-building.

Since Michael Key for his 3D model but already should know about what shape and especially what dimensions should have this wavy line, I have now tried to draw a first scetch.

Starting from the Peak-to-Valley width of about 5'' = 127 mm = 0,9 mm (1:144) specified by Vincent Morales , which roughly matches my previous estimates from photos, I have sketched the following profile (1:2), which should show this wavelike foam structure, how I could imagine it.



Considering that the average SOFI thickness on the ET is approx. 1'' (25,4 mm) , I have drawn a profile whose peak height I assumed with about 0,5'', which with approx. 0,1 mm in 1/144 would be very flat.
Now it would be important to find out how large this peak-height actually was at that time in the foam insulation.

Let's see if or how Craig Capdepon or Vincent Morales will comment on that, since they should actually remember it.

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