遄达是英国罗尔斯·罗伊斯公司发展的一种推力大、性能好的大涵道比民用三转子涡扇发动机。它是在ＲＢ211-524Ｇ/Ｈ的基础上改进的,加大了风扇的直径,增加1级中压压气机,低压涡轮增加1～2级并采用了某些新技术,其耗油率降低4%。全部单元体由后端拆下交换,可使整个核心机从风扇 Trent is developed by the British Rolls-Royce company a large thrust, good performance large bypass ratio civil three-rotor turbofan engine. It is based on the improved RB211-524G / H, increased the fan diameter, an increase of medium-pressure compressor, low pressure turbines increased by 1 to 2 and the use of certain new technologies, the fuel consumption rate decreased by 4 %. The whole unit is removed by the rear end of the exchange, allowing the entire core machine from the fan