China CFTE's jet engine testing platform (IL-76)

Wikipedia: CFTE engine testbed: The China Flight Test Establishment (CFTE) currently operates a flying testbed converted from a Russian-made Il-76MD jet transport aircraft to serve as a flying testbed for future engine development programmes. The first engine to be tested on the aircraft is the WS-10A “Taihang” turbofan, currently being developed as the powerplant for China’s indigenous J-10 and J-11 fighter aircraft. The #76456 Il-76MD, acquired by the AVIC 1 from Russia in the 1990s, is currently based at CFTE’s flight test facility at Yanliang, Shaanxi Province.