A flight management system (FMS) is a fundamental part of a modern aircraft's avionics. An FMS is a specialized computer system that automates a wide variety of in-flight tasks, reducing the workload on the flight crew to the point that modern aircraft no longer carry flight engineers or navigators. A primary function is in-flight management of the flight plan. Using various sensors (such as GPS and INS) to determine the aircraft's position, the FMS can guide the aircraft's autopilot along the flight plan.
Ashtech offers a wide range of professional GPS/GNSS solutions, ideal for Avionics such as FAA certifiable receivers to be integrated inside FMS, or receiver to be used for real time and/or post-processing trajectography.