4DT Navigation and the communication challenge

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4DT Navigation and the communication challenge

• AVIONICS 2007
• Amsterdam March 8th, 2007
• Captain Lars GV Lindberg

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AVTECH Business Areas
AviaQ
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SAS Sweden experience from 550 A-CDA Green
Approaches

• Potential environmental savings
• 90.000 Metric Ton CO2 reduction
• 315 Metric ton of NOX reduction
• 20.000 cars driving 15.000 on a yearly basis
• Large noise reductions
• 28.662 Metric Ton Fuel burn reduction
• 15.959.001 US Fuel bill reduction

IATA Fuel price 3/11 2006, 566.8/MT
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NUP 2 Partners
ANS
Airlines
Airports
Industrial group
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Conceptual system
Aircraft domain
AOC domain
ATM domain
Airport domain
Planner dBase
Planner dBase
Planner dBase
MMI
MMI
MMI
MMI

• ACD - precision
• SMGCS
• CDM
• Arr/dept prep

• Fuel planning
• Tow truck ops
• De-icer ops
• Snow team ops

• Arrival mgmt
• ACDA coord
• Slot mgmt
• Departure mgmt
• Surface mvmt

• Dyn type sched
• Swap request
• Crew planning
• Gate mgmt
• Maintenance

FMS 4DT
Processes, Procedures
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NUP2 implementation plan
Aircraft domain
AOC domain
ATM domain
Airport domain

• RD FMS
• U 10.6
• Intent

• RD VMMR
• VHF Comm
• ACARS
• VDL-2
• VDL-4

• Rate PC
• Arr/Dept Manager
• On time first served
• Gate allocation
• CDM applications
• Slot management

• SkyView
• CDM applications
• Slot swap

• RD EFB
• HW
• apps

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Strategic Communication Description
Climb
Descent
En-route
Lift-Off
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Tactical Communication DescriptionADS-B, Spring
2007
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NUP2 Trajectory Usage
ACARS ARINC 702A-1 standard
AOC SAS RC Hermes
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First 4D FMS Trajectory downlink
4D FMS Downlink October 19th, 2005 Stockholm
Oslo Scandinavian Airlines Flight SK 494
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ARINC 702A 4DT data
Route ESSAESMS10 ---------starts
here----------- 1,,,N59397E017581. 1,R,113,N59401E
018009,108,090122. C,,,N59376E018019,500,090227. 0
,R,557,N59359E017585,769,090306. 0,L,934,N59302E01
7443,1279,090456. 0,,,N59070E017184,2511,090907. 0
,R,1893,N59044E017155,2604,090932. B,,,N58515E0165
48,3032,091149. 8,,,N58380E016335,3500,091408. 0,,
,N58366E016312,3500,091423. 0,,,N57592E015342,3500
,092051. 0,,,N57388E015041,3500,092420. 0,,,N57024
E014122,3500,093032. 0,,,N56455E013489,3500,093323
. 9,,,N56354E013354,3500,093504. 0,L,981,N56345E01
3340,3450,093513. B,,,N56295E013331,3223,093553. 0
,L,1249,N55550E013268,2010,094058. 1,R,406,N55247E
013335,1002,094623. 1,R,215,N55210E013322,886,0947
12. C,,,N55189E013229,500,094951. 0,L,171,N55198E0
13275,459,095034. 0,,,N55276E013235,148,095357. 0,
,,N55314E013227,29,095528. 1,,,N55329E01321200002
926 EOT finalLDU1, CRC3483
0,L,934,N59302E017443,1279,090456
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Example Aircraft capability
Thrust
Thrust

• Entire descent approach
• Least possible thrust
• Highest possible altitude

Todays std practice 610 step downs
Why are A-CDAs not much practiced?
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Benefits of the 4DT Approach
1st 4DT downlink 19th of October 2005 1st 4DT
Flight 19th of January 2006 General 4DT operation
from 26th of March 2006
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Example from live trial
Reply RTA unachievable
RTA Accepted
In the new downlinked 4DT messages, the time
separation at HMR had increased from 1 to 2
minutes
Via 4DT downlink SAS075 confirms GA HAMMAR1V with
ETA 0649
RTA Accepted
Via 4DT downlink SAS2059 confirms GA HAMMAR1V
with ETA 0650
Controller want 180 second separation. Send RTA
064700 to SAS075
Sends RTA 064800 to SAS075 and RTA 065100 to
SAS2059
Controlling to time resulted in physical
separation of 10NM at OM
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