The SR-71 Blackbird needed to fly above Mach 3, producing temperatures beyond 500°F that made conventional aluminum unsuitable. Engineers turned to titanium, …
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Aviation Horizon
25 Years Ago, The SR-71 Blackbird’s Final Flight at 80,000 Feet.
by Editorby EditorOn October 9, 1999, aviation history was made as the SR-71 Blackbird completed its final flight, marking the end of an era …