China's home-grown turbine-based combined cycle (TBCC) engine system has completed its design and development stage and entered the aircraft-engine integration test phase, a major step toward the development of the country's next generation hypersonic drone.An article published by the WeChat account of Chengdu Aircraft Research and Design Institute, a design facility of the Chengdu Aircraft Industrial Co, on Thursday said the TBCC engine flight test project is led by the institute's chief architect Wang Haifeng, who also led key national defense projects, such as the development of the J-20 and J-10 fighter jets.The TBCC engine combines a turbine and a scramjet engine, which offers an ideal single-engine solution to achieving the shift from low speed to hypersonic speed, said Liu Xingzhou, a prominent ramjet expert and Chinese Academy of Engineering academician at the China Aerospace Science and Industry Cooperation, in 2011.The TBCC engine will allow the aircraft to fly at speeds of up to Mach 6, which means five to six times faster than the speed of sound, said Wei Xudong, a Beijing-based military analyst.
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