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GE's CF34 engines set standard in reliability and performance

GE Aviation's CF34 engines continue to set the standard in terms of reliability and performance in the regional jet segment. The engine's dispatch reliability rate remains at 99.95 percent with more than 72 million flight-hours and 59 million cycles completed since the first CF34-3A1 engine entered service in 1992.

"The CF34 engine family has offered our customers unmatched reliability, performance and value," said Chuck Nugent, general manager of the CF34 program at GE Aviation. "GE plans to continue this same level of performance in the next-generation of CF34 engines. We are already working the technology for this engine in our NG34 technology development program."

NG34 Technology Program: The NG34 technology program will incorporate GE's fuel-efficient, low emission eCore, which will offer 15 percent better fuel efficiency than the CF34-10E engine. Leveraging GEnx technology, the core will incorporate advanced material, unique cooling technologies, next generation twin-annular, premixing swirler (TAPS) for more efficient and cleaner fuel combustion and new 3-D aerodynamic design airfoils. Testing of the advanced core technologies is underway with the second core demonstrator running in mid-2011.

CF34-10E: With the highest thrust rating for the CF34 engine family at 20,000 pounds of thrust, 1,000 CF34-10E engines will be in service with 43 customers by July 2011. The engine continues to perform well in the field, accumulating more than 5 million flight-hours and 3 million cycles. The engine includes many advanced technologies, including a single-stage high-pressure turbine, advanced wide chord fan blades, advanced 3-D aero compressor and turbine airfoils, and a chevron exhaust nozzle. The CF34-10E engine powers the EMBRAER 190/195 aircraft as well as the Embraer Lineage 1000 business jet.

CF34-10A: The CF34-10A engine received its Federal Aviation Administration (FAA) Part 33 engine certification in July 2010 and continues flight testing on the Commercial Aircraft Corporation of China (COMAC) ARJ21 regional jet. COMAC has announced orders for 240 ARJ21 regional jet aircraft and forecasts a demand for up to 850 aircraft over the next 20 years.

CF34-8: The CF34-8 engine has been in service for 10 years, and 2,000 CF34-8 engines are in service on Bombardier's CRJ700 (CF34-8C1 & -8C5B1) and CRJ900 (CF34-8C5) aircraft and Embraer's 170/175 (CF34-8E5) aircraft. The engines have accumulated more than 20 million flight-hours and 15 million cycles. The CF34-8 engine design has evolved over the decade with enhancements that lowered part count, improved durability and reduced maintenance costs. The CF34-8C1 upgrade to incorporate technology from the CF34-8C5 version to create a common engine for the CRJ700 and CRJ900 is complete on the fleet. The upgrade provides either up to 5 percent thrust increase or up to 15 percent lower maintenance costs.

CF34-3: In service since 1992, more than 2,000 CF34-3A1 and -3B1 engines power the Bombardier CRJ100/200 aircraft. An upgrade package can convert the CF34-3A1 to a CF34-3B1 to improve fuel burn and climb thrust capability.

Press release issued by GE Aircraft Engines on May 17, 2011


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GE Aircraft Engines Turboprop Engines, Turboshaft Engines, Turbofan Engines, Turbojet Engines


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