General Electric GEnx - Specifications

Specifications

Data from.

This engine is a dual rotor, axial flow, high bypass ratio turbofan. The 10-stage high pressure compressor is driven clockwise (Aft Looking Forward) by a 2-stage high pressure turbine. The single stage fan and 4-stage low pressure compressor are driven counterclockwise (Aft Looking Forward) by a 7-stage low pressure turbine. The engine control system includes a Full Authority Digital Engine Control (FADEC), which has an aircraft connection for digital communication. An engine monitoring unit (EMU) provides vibration level signals to the aircraft.

Engine
Model
Arrangement Performance Dimensions (inch) and Weight (lb) Certified
(FAA)
Application Entry Into Service Emissions
Fan
diameter
(in)
Fan LPC HPC LPT HPT Thrust Max (lbf) Flat-Rated Temp C Overall
Pressure Ratio
(OPR)
Fan
Bypass Ratio
(BPR)
Air flow
(kg/s)
SFC
(max power)
T/W
Ratio
Length Max Envelope Weight
(Dry)
CO NOx HC
Take-off
(5 min)
Max
Cont.
Take-off Max
Cont.
Width Height
GEnx-1B54 111 1 4 10 7 2 57,400 56,300 ISA+15 ISA+10 36.0 4.48 194.0 139.0 137.0 12,822 Mar 31, 2008 B787-3
GEnx-1B58 111 1 4 10 7 2 61,000 56,300 ISA+15 ISA+10 4.76 194.0 139.0 137.0 12,822 Mar 31, 2008 B787-3,-8
GEnx-1B64 111 1 4 10 7 2 67,500 61,500 ISA+15 ISA+10 41.0 5.23 194.0 139.0 137.0 12,822 Mar 31, 2008 B787-8,-9
GEnx-1B67 111 1 4 10 7 2 69,400 61,500 ISA+15 ISA+10 43.0 5.41 194.0 139.0 137.0 12,822 Mar 31, 2008 B787-8,-9
GEnx-1B70 111 1 4 10 7 2 72,300 66,500 ISA+15 ISA+10 43.0 9.6:1 5.64 194.0 139.0 137.0 12,822 Mar 31, 2008 B787-8,-9
GEnx-2B67 105 1 3 10 6 2 67,400 58,500 43.0 8.6:1 185.0 127.0 127.0 12,400 July 22, 2010 B747-8

Note: Data for sea level static, standard pressure, no customer bleed or customer horsepower extraction, ideal inlet, 100% ram recovery, production aircraft flight cowling, production instrumentation, fuel lower heating value of 18,400 BTU/lb.

Note: 787-3 plans were cancelled on December 13, 2010 due to low demand.

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