Hi Guys,
Please note the plane in the photograph is a Lockheed A-12 which was originally built for the CIA in about 1962. It is not an SR-71 Blackbird, although they look very very similar. This design by Lockheed's Kelly Johnson was the precursor to the YF-12 and subsequently the SR-71 Blackbird. The Lockheed A-12 was taken out of service in 1968. The SR-71 Blackbird was taken out of service in 1998.
Cheers,
John B
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