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GEnx: Powering the Dreamliner and the Boeing 747

The GEnx engine from GE is based on the proven architecture of the GE90. The GEnx-1B version was designed for medium-capacity widebody aircraft such as the Boeing 787 Dreamliner, while the GEnx-2B version was developed for the Boeing 747-8—the uprated version of the legendary Boeing 747 “Queen of the Skies.” The GEnx was designed to succeed the massively successful CF6, the best-selling engine for widebody aircraft. Using the latest materials and design techniques, GE succeeded in reducing the engine’s weight, noise emissions, and maintenance costs while also enhancing performance.
 

MTU’s involvement in the GEnx

MTU is a risk- and revenue-sharing partner in the GEnx program with a share of around 6.5 percent. The company is responsible for developing, manufacturing, and assembling the turbine center frame. Here, MTU can draw on its experience with the turbine center frame for the GP7000, which is testament to this component’s reliability. As per MTU’s involvement in the program, MTU Maintenance is responsible for maintaining this turbine center frame.

Facts

  • EIS: 2012 
  • The GEnx is a two-shaft turbofan engine in the thrust category 66,500-76,100 lbf
  • Built on proven GE90 architecture
  • Best fuel efficiency, lowest emissions
  • Superior materials, lowest weight
  • Low noise level

MTU competencies

Partners

  • GE Aerospace
  • Safran Aircraft Engines
  • Safran Aero Boosters
  • IHI
  • GKN Aerospace
  • Hanwha

Applications

  • GEnx-1B
    • Boeing 787-8 
    • Boeing 787-9 
    • Boeing 787-10 
  • GEnx-B2
    • Boeing 747-8I 
    • Boeing 747-8F

Technical Data

 GEnx-2BGEnx-1B

Max. thrust

66,500 lbf

69,800-76,100 lbf

Bypass ratio (takeoff)

8,0

8,8-9,0

Overall pressure ratio (takeoff)

44,7

43,8-47,4

Length

14.2 ft

15.4 ft

Fan diameter

8.8 ft  

9.25 ft

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