Lockheed SR-71 Blackbird

Sierra embedded blanks with Lockheed SR-71 Blackbird titanium material. All blanks will come with one COA per blank. COAs are 4" x 6" card stock with foil COA seal. The Lockheed SR-71 "Blackbird" is a long-range, high-altitude, Mach 3+ strategic reconnaissance aircraft developed and manufactured by Lockheed Corporation. It was operated by both the United States Air Force and NASA. The SR-71 was developed as a black project from the Lockheed A-12 reconnaissance aircraft during the 1960s by Lockheed's Skunk Works division. The shape of the SR-71 was based on that of the A-12, which was one of the first aircraft to be designed with a reduced radar cross-section. Mission equipment for the reconnaissance role included signals intelligence sensors, a side-looking airborne radar, and a photo camera. The aircraft was introduced to operational service in January 1966. SR-71 is made of 92% titanium, a metal or rutile. It was in short supply in the United States, and the Skunk Works team was fo