GE has initiated ground testing of its CF34-10A engine, which will power the Chinese ARJ21-700 regional jet. The engine reached a maximum thrust of 20,000 pounds (89 kN) during its first test at GE’s outdoor facility in Peebles, Ohio, achieving 70% of its full thrust capacity. This marks an important step forward for the project and demonstrates the engine's potential for future operations.
The CF34-10A shares 80% of its design with the -10E model used on Embraer’s E-Jet family, including advanced features like wide-chord fan blades, three-dimensional aerodynamic high-pressure compressor blades, a low-emission combustion chamber, and a single-stage high-pressure turbine. These innovations help improve efficiency and performance while reducing emissions.
The first two engines for flight testing were nearing final assembly at GE’s Durham, North Carolina facility in November, and were scheduled to be delivered to China Aviation Industry First Group (AVIC 1) in December. Meanwhile, the first 90-seat ARJ21-700 is being assembled at the Shanghai Aircraft Factory and is expected to be shipped by the end of the year.
China Aviation Commercial Aircraft Corporation (ACAC) aims for the ARJ21 to complete its first 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 in 2008. Additionally, the engine will be assembled and produced in Shenyang, China, as the primary powerplant for the ARJ21.
GE also announced that the first test engine (FETT) will reach its initial performance standards by October after completing airfoil and crosswind airworthiness tests. The engine’s rated thrust will be 18,500 pounds (82 kN), confirming its readiness for further development and certification.
Since its introduction in 1992, the CF34 series has been widely adopted in the regional aviation market, starting with the Bombardier CRJ100. Over 3,600 units have been delivered since then, including more than 1,200 for the CRJ700/900 and E-170/175 models, and over 200 -10E versions for the E-190/195 aircraft. The CF34-10A represents the next evolution of this successful engine family, tailored specifically for the ARJ21-700.
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