Link: Bill Weaver Mach 3 Blackbird Breakup | Roadrunners of Groom Lake

Bill Weaver Mach 3 Blackbird Breakup | Roadrunners of Groom Lake

Among professional aviators, there’s a well-worn saying: Flying is simply hours of boredom punctuated by moments of stark terror. And yet, I don’t recall too many periods of boredom during my 30-year career with Lockheed, most of which was spent as a test pilot. By far, the most memorable flight occurred on Jan. 25, 1966. Jim Zwayer, a Lockheed flight test reconnaissance and navigation systems specialist, and I were evaluating those systems on an SR-71 Blackbird test from Edwards AFB, Calif. We also were investigating procedures designed to reduce trim drag and improve high-Mach cruise performance. The latter involved flying with the center-of-gravity (CG) located further aft than normal, which reduced the Blackbird’s longitudinal stability.
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