The Lightweight Fighter proposals were delivered to the Air Force by the February 18, 1972 deadline. The Boeing Model 908-909 was the winner of a preliminary analysis. Other submitted designs included the General Dynamics Model 401 and Northrop Model P-600 which were deemed second and third place, respectively. The General Dynamics Model 401 was renamed the YF-16 and was the eventual winner. The P-600 was renamed the YF-17, later F/A-18 was a further modification. The Vought Model V-1100 and Lockheed Model CL-1200 were fourth and fifth place in the preliminary analysis.
