Post #5590 by Lapsody on the US Policy board

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It will be interesting if they have solved that problem in a way that doesn't require refueling immediately after take-off. - 1pg

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Thanks 1pg, that is interesting about the SR-71. I have never heard about that problem before. BHM

I always considered that a materials problem. We've gone from not understanding all the properties of materials, to being able to predict the properties of several different materials combined, and innovating so we can dial in the cost of materials and predict the cheapest way to get the desired properties. Fascinating. I've read about the leakage problem in the SR 71, and I would say if they designed it now that they could have no leakage in a short period of time.

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