Boeing 737 Classic Vs. NG Vs. MAX: What Changes Across 3 Generations

The Boeing 737 has remained one of the most recognizable passenger aircraft in commercial aviation for decades, evolving through several generations while retaining the basic design that made it successful. From the 737 Classic to the Next Generation (NG) and the latest 737 MAX, Boeing has introduced more efficient engines, improved wings, and increasingly sophisticated cockpit technology without abandoning the aircraft’s familiar low-wing configuration and narrow-body layout.