As the Air Force develops engines for next-generation aircraft to fly faster and stay in the air longer, Arnold Engineering Development Complex, an Air Force Test Center organization, is preparing ground test facilities to prove their worthiness. The Next Generation Turbine Engine Test Capability Project, or NGTETC, is an effort to restore and modernize the C-Plant and two altitude test cells, C-1 and C-2, of the Engine Test Facility at Arnold Air Force Base to enable testing next-generation, full-scale propulsion systems under simulated flight conditions that are as realistic as possible.