Operational checks of the flight control and instrumentation systems on the F-15 ACTIVE (Advanced Control Technology for Integrated Vehicles), are seen here being conducted Sept. 18, 1995, in a test bay in the Integrated Test Facility (ITF) at NASA's Dryden Flight Research Center, Edwards, California. A key feature of the ACTIVE research project is the evaluation of thrust vectoring nozzles, developed by Pratt and Whitney, that could enhance high-angle of attack control and maneuverability on future aircraft.