The vehicle is propelled to a flying altitude of 35,000 feet (10,668 meters) by two General Electric CF6-80C2A8 turbofans.

该行器由两台通用电 CF6-80C2A8 风扇发动机驱动至 35,000 英尺（10,668 ）行高度。

It was powered more efficiently than previous 747s by a smaller version of the General Electric GEnx turbofan from the 787 Dreamliner.

由 787 梦想客机通用电 GEnx 风扇较小版本提供比以前 747 更高效动力。

As a result, newer jets and their larger, high bypass turbofan engines  could have their spare powerplants transported in a variety of purpose-built freighters.

因此，较新喷式机及其更大高旁通比风扇发动机可以使用各种专用货机运输备用动力装置。

The BelugaXL is equipped with powerful Rolls-Royce Trent 700 turbofan engines, each capable of producing a maximum thrust of 71,000 lbf (316 kN).

BelugaXL 配备强大劳斯莱斯 Trent 700 风扇发动机，每台发动机都能产生 71,000 磅力（316 kN）最大推力。