Boeing New Large Airplane
The Boeing NLA, or New Large Airplane, was a 1990s concept for an all-new quadjet airliner in the 500+ seat market. Somewhat larger than the 747, this aircraft was similar in concept to the McDonnell Douglas MD-12 and later Airbus A380. In 1993, Boeing chose not to pursue development of this concept, later focusing instead on the Boeing 747-500X and -600X, then 747X and 747X Stretch, and after that, the Boeing 747-8. The project names for this aircraft were NLA and Boeing 763-246C.
Source: Seattle Post-Intelligencer
