Kelly Johnson was an American Engineer at Lockheed Martin. He helped make planes, for example the SR-71 Blackbird and the P-38. He worked at the skunkworks at Lockheed Martin. There, with , "The Father of Stealth," they made the Blackbird. The SR-71 had a top speed of 2193 mph or mach 3+. It flew at 80,000 ft above the ground, the only plane to fly that high. 