01 million pounds (458 metric tonnes) into the sky. Developed by General Electric as the GE90-115B derivatives for the passenger variant and the GEnx-2B67 for the freighter, these powerplants are engineering marvels designed to deliver exceptional performance, reliability, and efficiency for the demanding long-haul and high-capacity cargo sectors.
747-8 Engines Production Current Only Quad
The efficiency is further enhanced by the aircraft's ability to fly at optimal altitudes and speeds, unaffected by the performance penalties that can affect twin-engine jets over extreme oceanic crossings. To manage the complex airflow interactions between the engine and the wing, particularly at low speeds and high angles of attack, the aircraft features vortex generators and an intricate wing leading-edge design.
Operational Efficiency and Performance While the visual impact of the four-engine layout is undeniable, the operational justification centers on redundancy and flexibility. The GEnx-2B67 engines used on the freighter variant share the same core architecture but are optimized for the specific demands of cargo operations, providing the necessary power to lift heavy payloads to high altitudes.
747-8 Engines Production Current Only Quad
Integration with the Airframe The integration of these colossal engines with the 747-8 airframe is a critical engineering feat. Mounted on the upper surface of each wing in an underslung pylon, these engines are rated to produce a massive thrust of approximately 134,000 pounds-force (600 kilonewtons) each.
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