Amazon.com description: Product Description: North American's often-forgotten F-107A remains perhaps the most enigmatic of the famous early "Century Series" fighters. The enigma stems from the fact that it was an outstanding and extraordinarily effective war-plane and was, perhaps, the best airplane in the world for its particular job at the time of its late 1956 first flight. Mysteriously, it was never to go into production, even in light of its superior capabilities. The F-107A scored several firsts. Among them were a truly unique flight control system, an advanced inlet system, and the incorporation of a semi-submerged store. It was also the last of a long line of North American fighters to be built.