The power head gearbox will play a crucial role in the next-generation engine, helping to enhance engine efficiency across a wide range of thrusts. The power gearbox adopts a planetary design, with each "planet" bearing the force equivalent to that of a fully operational遄达XWB engine. This design enables the core shaft of the engine to rotate at high speed while the front fan of the engine operates at a low speed. The corresponding improvement in efficiency and the reduction in weight have led to a 25% increase in fuel efficiency compared to the first-generation engine.
