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FANS - Future Air Navigation System

A very general introduction to the Future Air Navigation System (FANS).
by

Michele Bonato

on 29 May 2015

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Transcript of FANS - Future Air Navigation System

Future Air
Navigation System

Conventional Route
NAVIGATION
Implementation of the RNAV
airways built on ground-based navigation aids
RNAV Routes
SURVEILLANCE
1. GPS position is
more accurate
than the actual provided by SSR

2. IFR environment
closer aircraft spacing
can be used than at present and
this provides much-needed
capacity improvements in congested airspace

3.
easier
and
less expensive
to deploy than ground radar

5.

because ADS-B is a broadcast service that
can be received by other aircraft
as well as ATC on the ground, ADS-B offers the option for an aircraft to
have
accurate and inexpensive
traffic awareness of other nearby
aircraft


CNS/ATM concept
C
ommunications
N
avigation

S
urveillance

A
ir
T
raffic
M
anagement
increase the airspace capability
enhancing the operational efficiency
FANS in the NATS
1400
planes crossing NATS every day
Boeing FANS-1
In
1983
, ICAO established the
special committee on the Future Air Navigation System (FANS)
,
charged with developing the operational concepts for the future of air traffic management
(
ATM
).
The FANS report was published in
1988
and laid the basis for the industry's future strategy for ATM through digital CNS using satellites and data links
So... what does FANS is?
is a that was developed by ICAO and developed with Boeing, Airbus and other companies in the air transport industry
to allow more aircraft to safely and efficiently utilize a given volume of airspace.
concept
ensuring the best safety levels
while
INFORMATION
+
CONNECTIVITY
SECURITY
Area Navigation routes follow defined "way-points"
RNP Routes
routes within contained areas
current ground nav-aid
way-points
curved
paths
Limited design flexibility
increased airspace capability
optimized use of airspace
Greater navigational precision and accuracy
RNP benefits:
Implementation of the SSR
FANS as
a set of avionics systems
which provide direct Data-Link communication between the pilot and the ATC
A D S
is a method of surveillance that relies on
automatic downlink reports
from the aircraft's avionics
4.
extension
of the benefits
of ATC services
in those airspace which previously
had no radar and only procedural separation services

COMMUNICATION
Implementation of the VHF and HF communications
The role CPDLC plays in the
Future Air Navigation System
is to reduce the

time it takes for air traffic control to issue instructions to a pilot and the pilot to acknowledge.
C P D L C
is the
data link software within the FMS
that enables two-way communication
between the cockpit and ATC
.
It contains the
set of predefined text
messages for clearances, requests and routine message traffic.
The current FANS
CPDLC is designed to use the ACARS network
much in the same manner that AOC is used today.
But rather than route message traffic to an airline operational center, the CPDLC is routed from the cockpit to ATC.
ADS-B
roadcasting
ADS-C
ontract
ATC establishes “contract” with aircraft for automatic position reporting
remote and
oceanic areas
continental airspace
No crew action required, automatic connection.

Air Traffic Control
GPS Satellites
Communication
Satellite
Communication
Satellite
SATCOM
SATCOM
Ground
Station
ACARS network
SOPAC
old HF communication will be replaced totally by 2017, non FANS equipped planes will be exclude from the oceanic airspace
120
nm
30
nm
benefits...?
less airline costs...
reduced separation between airplanes
less fuel consuption
...cheapest tickets fares.
more passengers
FANS 1/A
FANS 2/B
Full FANS
oceanic/remote airspace
high density airspace
North America, Europe
C

S
: ACARS based
CPDLC

N
: GPS-based

ATM
: Air Traffic Control
(current procedure
enhancement)
&
C

S
: new comm.
network (ATN)-
based ATC datalink

N
: Extended Satellite
Nav.-Based (GNSS)

ATM
: Air Traffic Control
(current procedure
enhancement
initially;
starts transition to
Free Flight)
&
C

S
: based on
Advanced Aircraft
Reporting Systems
(ADS-B)
and ATN-based
ATC datalink

N
: Extended Satellite
Nav.-Based (GNSS)

ATM
: "free flight"
&
The Future of FANS
2003-2008
early 2000
approximately from 2020
Today FANS is used
primarily in the oceanic regions
taking advantage of both satellite communication and satellite navigation to effectively create a
virtual radar environment
for safe passage of aircraft.
direct routing..
Reduces step-down and circling approaches
Saves fuel and time
Increases airspace capacity
Reduces missed approaches
Full transcript