10 Great Lockheed SR-71 Blackbird Facts!
Speed, stealth and strength. These are the three words I would use to describe the great Lockheed SR-71 Blackbird! This classified aircraft was used for unique missions. It was first introduced in 1966 and was capable of traveling up to Mach 3.2 and reach an altitude of 85,000 feet. This is double the height of commercial aircraft […]
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