Plane of the Week: SR-71 Blackbird
When it comes to supersonic spy planes, the SR-71 Blackbird may be the most notable. This Lockheed black project was championed by Clarence "Kelly" Johnson, who was the head of Lockheed's Skunk-works division. During its Air Force service life from 1964 to 1998, 32 of these planes were built, 12 of which [...]