GE has started ground testing of its CF34-10A engine for the Chinese ARJ21-700 regional jet, marking a significant step forward in the development of this domestically produced aircraft. During its first test at GE's outdoor facility in Peebles, Ohio, the engine reached a maximum thrust of 20,000 pounds (89 kN), which is approximately 70% of its full capacity. This milestone represents an important phase in the engine’s certification process.
The CF34-10A shares 80% of its design with the -10E model used on Embraer’s E-Jet family, including advanced features such as wide-chord fan blades, three-dimensional aerodynamic high-pressure compressor blades, a low-emission combustion chamber, and a single-stage high-pressure turbine. These technologies contribute to improved efficiency and performance.
The first two engines destined for flight testing were completing final assembly at GE’s facility in Durham, North Carolina, and were scheduled for delivery to AVIC 1 in November and December. Meanwhile, the first 90-seat ARJ21-700 is being assembled at the Shanghai Aircraft Factory and is expected to be delivered by the end of the year.
China Aviation Commercial Aircraft Corporation (ACAC) aims for the ARJ21 to make its maiden flight in March 2008, with airworthiness certification expected by the third quarter of 2009. GE plans to secure an American Airworthiness Certificate for the CF34-10A engine by 2008. Additionally, the engine will be assembled and manufactured in Shenyang, China, as part of the local production strategy.
GE also announced that the first test engine (FETT) will achieve its initial performance standards by October following airfoil and crosswind testing. The engine’s certified thrust is expected to reach 18,500 pounds (82 kN).
Since its introduction in 1992, the CF34 series has become a key player in the regional aviation market. It was first used in the Bombardier CRJ100 and has since been deployed in various models, including the CRJ700/900 and the E-170/175. Over 3,600 units have been delivered, with more than 1,200 powering the CRJ and E-Jet families, while over 200 -10E models are currently in service on the E-190/195 aircraft.
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