Delivering Proven Performance
As the fastest-selling, widebody jet engine in GE Aerospace history with more than 2,700+ engines in-service and on order, the GEnx delivers proven performance for the Boeing 787 Dreamliner and Boeing 747-8.
The engine’s leading-edge technologies and advanced architecture offer:
Highest Reliability
99.98 dispatch rate, 3 times higher time on wing, and 3 times fewer significant events
Most Efficient
1.4% better SFC vs. the competition for a 3,000 nautical mile mission
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
With its superior efficiency, the GEnx powers many of the longest 787 Dreamliner routes, including Qantas’s 787-9 recording-breaking non-stop flight from New York to Sydney.
GEnx Engine Models
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"
111.1"
111.1"
104.7"
Base Engine Length (in)*
184.7
184.7
184.7
169.7
Compressor Stages (Fan/Booster/HPC)
1/4/10
1/4/10
1/4/10
1/3/10
Turbine Stages (HP/LP)
2/7
2/7
2/7
2/6
Combustor
SAC/TAPS
SAC/TAPS
SAC/TAPS
SAC/TAPS
Control
FADEC III
FADEC III
FADEC III
FADEC III
Bearings
2B+4R
2B+4R
2B+4R
2B+4R