Skunkworks - Clarence "Kelly" Johnson February 25, 2016 Christian Albrecht Clarence Leonard "Kelly" Johnson was an American systems engineer and aeronautical innovator. He was renown for his contributions to many noteworthy aircraft designs, including the Lockheed U-2 and SR-71 Blackbird spy planes, as well as the P-38 Lightning, P-80 Shooting Star, and F-104 Starfighter, among others. Kelly's 14 Rules & Practices See this Amazon product in the original post See this content in the original post