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 civilian aircraft no longer carry flight engineers or navigators. A primary function is in-flight management of the flight plan.

What is FMS position?

The Flight Management System (FMS) is a sophisticated aircraft navigator. It is capable of calculating an aircraft’s position by accepting inputs from ground-based radio navaids, as well as position data from GPS.

What is FMS in A320?

The Airbus FMS for the A320 series and A330 aircraft consists of two primary components: flight management computers and Multifunction Control Display Units (MCDU).