Social Problems Perspectives, Disaster Research and

The top-secret SR-75 far exceeds the classified military speed and altitude records set by the old SR-71, which could fly at a still-classified Mach 3.3 and reach a ceiling exceeding 85,000 feet. The SR-75 attained altitudes of over 120,000 feet and speeds exceeding Mach-5 (or 5 times the speed -of-sound). ................
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