Flight management System

1. Flight Management System
Presented By: Pravin Londhe
Technology Design Services & Solutions
Software | Embedded System | ASIC/FPGA

2. CONTENTS

Introduction

What is FMS?

FMS Components

FMS Database
-Navigation Database -Performance Database

Flight Management Computer Input/Output

FMS Operation

FMS Advantages

FMS Disadvantages

3. Introduction

Modern aircraft are filled with the latest technolgy.

Technology which greatly reduces workload if the
systems are understood and used properly.

The heart of all these systems is the FMS.

4. What is FMS?

FMS is stand for Flight Management System(FMS) is a
specialized computer system that automates a wide
variety of in-flight tasks.

FMS acts as the 'brain' of the aircraft navigation
system.

5. FMS Components

From the cockpit,the FMS is normally controlled through a
Control Display Unit(CDU) which incorporates
a small screen and keyboard.

The FMS sends the flight plan for display
on the EFIS,Navigation Display(ND).

6. FMS Database
FMS Contains two types database which are:

NAVIGATION DATABASE

PERFORMANCE DATABASE

7. FMS Navigation Database
All FMS contain a navigation database.

The navigation database contains the elements from which
the flight plan is constructed.

Navigation Database include
-Waypoints, -Airways(highways in the sky)
-Radio navigation aids(DME,VOR,ILS)
-Airports(Runways),Holding patterns
-And a variety of other related information

8. FMS Performance Database

During preflight,other information relevant to managing
the flight plan is entered.

This can include performance information such as
-Maximum take-off weight,
-Fuel weight
-Center of gravity.
-It will include altitudes including the initial cruise altitude.

9. FMS Operation

Pilot key in input route information to CDU of FMS.

The navigation and aircraft performance database must be
verified.

Routing must be confirmed accurate and correct and any
ATC changes to expected routing must be entered
manually.

The pilot becomes a manager of this sophisticated system,
monitoring progress and updating or changing parameters
as necessary.

10. FMS Advantages

FMS are designed to:
-Improve Navigation
-Aid Fuel Efficiency
-Reduce Crew Workload
-More Accurate

11. FMS Advantages

FMS are designed to:
-Navigation

A principal task of the FMS is to determine the aircraft's
position

Given the flight plan and the aircraft's position,the FMS
calculates the course to follow.

Autopilot can be set to follow the course.
-

12. FMS Advantages
-Aid Fuel Efficiency

It calculates performance data and the most fuel-efficient
route to be flown based on typical aircraft parameters such
as weight,cruise altitude and actual aircraft
position,regardless of weather conditions.
-Reduce Crew Workload

Allows pilots more time to analyze and make decisions.
(drink coffee to)

13. FMS Advantages
-More Accurate.

Computer generated efficiency profiles are more accurate.

Navigation accuracy is improved through integration and
cross referencing of multiple sources.

14. FMS Disadvantages
Error Data Entry.
-Reliant on pilot input.
-There is potential of misinterpretation or erroneous data
entry.

Loss of situational awareness
-Loss of situational awareness.Pilots may becomes so
involved in operating and monitoring the system that they
forget to look outside.

Expensive

15. Thank You
15