I have a great deal of respect for all the work Kelly Johnson did. The Electra airliner (major renovations to the design after he joined Lockheed), The P-38, P-80, F-104, U-2 , and SR-71. Quite the stable of designs. Most designers would have been happy with just one of those aircraft in their protfolio. I have always been inthralled with the 71. An aircraft desinged before cad design on slide rules! He said that he felt the airforce bought the wrong version. They should have bought the YF-12. Actually the Air Force order 102 of them, but congress cut them from the budget. So for this built I have a 1/48 scale YF-12 I will toss into this build.