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The specialists at M.M. Gromov Flight Research Institute (FRI) have developed special techniques and facilities to evaluate the aircraft pilot - navigational equipment for conformance to specified requirements. On-board trajectory measurement complex equipment is used for data recording and determination of actual values of trajectory parameters. The parameter values are obtained using the differential mode of the satellite navigation system. The flight test process is monitored at the flight test control center. The use of a test-bench and simulation complex allows reducing the scope and costs of flight tests. Flight test data are transmitted to the specialists for processing via local computer network on the day of flight tests. This covers the description of facilities used for testing pilot - navigational equipment of new aircraft at the M.M. Gromov Flight Research Institute.