GEnxEngine

Name: GEnx
Brand: GE Aerospace

Delivering proven

performance

As the fastest-selling widebody jet engine in GE Aerospace history with more than 3,000+ engines in-service and on order, the GEnx delivers proven performance for the Boeing 787 Dreamliner and Boeing 747-8

Leading-edge technologies and advanced architecture offer:

3X

Higher time on wing

Highest reliability
99.98 dispatch rate, 3 times higher time on wing, and 3 times fewer significant events

1.4

Reduced CO2 emissions per year

Highest reliability
1.4% better SFC vs. the competition for a 3,000 nautical mile mission

3

Higher annual utilization

Highest availability
3% higher annual utilization means 7 more days per year of aircraft availability

Most

Advanced technology

Advanced materials provide greater durability, lighter weight, and higher LLP lives

The GEnx powers

many of the longest 787 Dreamliner routes

With its superior efficiency, the GEnx powers many of the longest 787 Dreamliner routes, including Qantas’s 787-9 recording-breaking nonstop flight from New York to Sydney.

Designed

for Performance
and Reliability

Less Line Maintenance

As the world’s first commercial engine with both a carbon-fiber composite front fan case and fan blades, the GEnx fan module is lighter in weight and corrosion resistant, offering customers less line maintenance and improved reliability with less noise.

More efficient design

After introducing composite fan blades on the GE90 engine in 1995, we took the technology to a new level with the GEnx. The carbon-fiber composite fan blades on the GEnx engine feature a more efficient design, a reduced blade count (from 22 to 18 fan blades), and a composite fan case for further weight reduction.

Cutting-edge materials

Cutting edge materials including additively manufactured parts. The first 3D-printed part installed on a GEnx was approved by the FAA in November 2018 for the power door opening system (PDOS) bracket.

Reduces NOx

The GEnx's innovative lean-burning twin-annular pre-swirl (TAPS) combustor dramatically reduces NOx and other regulated gases below today's regulatory limits and enhances durability.

Increased efficiency

The GEnx low-pressure turbine (LPT) is lighter and more efficient than its predecessor and incorporates next-generation 3D aerodynamics. It also introduces titanium aluminide blades to stages 6 and 7, reducing engine weight by approximately 300 lbs. and contributing to increased fuel efficiency on the GEnx engine.

GEnx-1B Engine

Boeing 787, -8, -9, -10

GEnx-2B Engine

Boeing 747-8, Freighter

GEnx Engine Model Comparison

-1B70 (787-8)

-1B74/75 (787-9)

-1B76 (787-10)

-2B67B (747-8)

Take off thrust

69,800

74,100

76,100

66,500

Bypass ratio (takeoff / top-of-climb)

9.0 / 8.3

8.8 / 8.1

8.8 / 7.9

8.0 / 7.4

Overall pressure ratio (takeoff / top-of-climb)

43.8 / 53.3

46.3 / 55.4

47.4 / 58.1

44.7 / 52.4

Air Mass Flow (takeoff, lbs-mass/sec)

2559

2624

2658

2297

Fan Diameter (in)

111.1"

104.7"

Base Engine Length (in)*

184.7

169.7

Compressor Stages (Fan/Booster/HPC)

1/4/10

1/3/10

Turbine Stages (HP/LP)

2/7

2/6

Combustor

SAC/TAPS

Control

FADEC III

Bearings

2B+4R

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