The Next Generation Turbofan

The GEnx is GE's next generation turbofan and will be the workhorse engine of the 21st century for medium-capacity, long-range aircraft.


Engine Overview

From its light and durable composite fan blades to its high-performance turbine, the GEnx will be the most fuel-efficient jet engine in its thrust range - ever. It will operate at lower noise levels and produce fewer NOx and CO2 emissions than any other commercial production engine in its category.

The innovative GEnx combustor, the most efficient in GE history, is designed to create more uniform combustion temperatures and a significant reduction in emissions. Likewise, the turbine offers improved efficiency with enhanced geometry airfoils, counter-rotating architecture and advanced materials.

Its exclusive third-generation composite fan blades are intricately formed to deliver superior aerodynamic performance and durability. Its light weight composite fan case reduces aircraft weight by 1200 lbs., eliminates corrosion and lowers maintenance costs. And, with only 10 stages, the GEnx compressor uses hundreds fewer parts, yet operates at the highest pressure ratio in commercial aviation.

Physical Information

Fan/Compressor Stages: 1F/4LPC/10HPC

High-Pressure Turbine/Low-Pressure Turbine Stages: 2/7

Max Diameter (Inches): 111.1

Length (Inches): 184.7

Power Specifications

Max. Power at Sea Level (Lb.): 53,200-74,100 lbs.

Overall Pressure ratio at Maximum Power: 35.6/43.5 - 47.7/51.4

Bypass Ratio: 8.6/9.0 - 9.1/9.6