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Solving the "thermal barrier" using stainless steel instead of traditional aluminum.

During the late 1950s and early 1960s, the Soviet Union faced a daunting challenge: the threat of high-altitude American bombers and reconnaissance aircraft. The Ye-158 project focused on: 158.jpg

What is the for this article (e.g., academic, enthusiast, or general blog)? Solving the "thermal barrier" using stainless steel instead