9 Revolutionary Aircraft Engine Breakthroughs That Changed Aviation History
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6. Pratt & Whitney JT3D Turbofan
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As one of the first successful turbofan engines, the JT3D marked a significant milestone in commercial aviation. Its dual-spool architecture and bypass ratio configuration improved fuel efficiency and reduced noise levels compared to earlier turbojets. Powering popular aircraft such as the Boeing 707 and Douglas DC-8, the engine's reliability and performance made it ideal for long-haul flights. The JT3D's success established the turbofan as the standard powerplant for commercial aviation.
