Boeing 737 Classic

The Boeing 737 Classic series, produced by Boeing Commercial Airplanes from 1984 to 2000, represents the second generation of the world’s best‑selling narrow‑body jet. Following the original 737‑100/200 models, the Classic lineup introduced the -300, -400, and -500 variants, each featuring upgraded CFM56 turbofan engines that delivered up to 20 percent more thrust while cutting fuel burn and noise. The redesign also incorporated a larger low‑pressure wing with increased span, stronger landing gear, and revised avionics, giving the aircraft better range, payload capacity, and operational flexibility. The -300 became the most popular, serving short‑ and medium‑haul routes for airlines worldwide, while the -400 offered a stretched fuselage for extra seats and the -500 provided a high‑density, short‑range option. Over 1,900 Classic jets were delivered, establishing a bridge between the early 737 models and the later Next‑Generation series. Their reliability, cost‑effectiveness, and commonality with earlier 737s helped airlines standardize fleets, reduce training expenses, and expand global connectivity. The 737 Classic thus solidified Boeing’s dominance in the commercial market and set technical standards that continue to influence modern jet design. It remains a benchmark for efficiency.

Boeing Commercial Airplanes

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