Powering the Dreamliner: How the 787’s GEnx Engines Work

jet airliner is nothing without its engines. Giving them the power to climb up to 43,000 feet and the range to fly half way around the world, the engines are what give the aircraft life. Larger and more powerful, yet quieter than ever before, the modern jet engine really is a marvel of human engineering achievement.

When an aircraft is designed, it’s normally done with a couple of engine options from different manufacturers. This gives the airline customers the choice, depending on their commercial needs. The Boeing 787 Dreamliner, which I fly, comes with the option of either the General Electric GEnx or the Rolls-Royce Trent 1000.

With 53% of all 787 orders, the GEnx is the most popular choice with the Trent 1000 accounting for 33%. The remaining 14% of orders remain undecided. The GEnx now has more than 1,600 units on order, making it the fastest-selling high-thrust engine in GE’s history. The GEnx provides 15% more fuel efficiency and 15% less CO2 the the CF6 engine, which powered the 747-400.

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