A warrior's soul
It was John Boyd who turned dogfighting from a mysterious and unknowable "art", dictated by talent and bravado, into a science, dictated by physics and thermodynamics. It was his insight that allowed already brave and skilled men to become far better masters of their craft.
Simply working on the legendary Eagle would have been enough to guarantee John Boyd a place in history. Yet that wasn't enough. He and Pierre Sprey hated the interference that the Air Force Pentaloons kept throwing his way, as they insisted that the Eagle be outfitted with the latest whiz-bang gadgets and pointless fripperies. So finally he, Col. Riccioni, and Sprey got fed up and started an underground, top-secret development program for an all-new, streamlined, lightweight rapier of a fighter that would be, quite simply, the ultimate dogfighting machine.