---
title: "Flight Management System — aviation glossary — OnlyPlanes"
description: "A system managing navigation, the flight plan and associated performance functions."
canonical_url: "https://onlyplanes.ru/en/learn/fms"
locale: en
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  "og:title": "Flight Management System — aviation glossary"
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> Index of every page on this site: [llms.txt](https://onlyplanes.ru/llms.txt)

Aviation abbreviation

# Flight Management System

ABBR · Aircraft and systems

At a glance

## Meaning of Flight Management System

A system managing navigation, the flight plan and associated performance functions.

### More about Flight Management System

The Flight Management System uses aircraft data and navigation information to support route planning and guidance.

The crew enters, checks and monitors the relevant data. An FMS does not independently decide that a clearance, weather condition or operational plan is suitable without the crew's oversight.

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