RETACDA Workshop Presentation

(1)

Madrid, 18

Madrid, 18thth_{Feb 2010}_{Feb 2010}

RETA-CDA

“Reduction of Emissions in Terminal

“Reduction of Emissions in Terminal Areas (TMA)Areas (TMA)

using Continuous Descent Approaches (CDA)”

Invitation to Tender No.

Invitation to Tender No. SJU/0002-CFPSJU/0002-CFP

RETA-CDA

Workshop

Mariano Vega, Aena Mariano Vega, Aena Federico Caballero, Iberia Federico Caballero, Iberia Luis Chocano, INECO,

Luis Chocano, INECO, Project Coordinator Project Coordinator

RETA-CDA Workshop

RETA-CDA Workshop 22

Madrid, 18

Agenda



 8h50 Welcome and introduction 8h50 Welcome and introduction 

 9h00 AIRE Activities in Europe9h00 AIRE Activities in Europe 

 9h30 RETA-CDA Project presentation9h30 RETA-CDA Project presentation 

 9h45 Madrid TMA and Airport context9h45 Madrid TMA and Airport context 

 10h010h00 0 ATCOATCOss PersPerspectpectiveive 

 10h15 On board Operational Procedures. Pilot’s Perspective10h15 On board Operational Procedures. Pilot’s Perspective 

 10h30 Coffee Break 10h30 Coffee Break 

 11h00 Data Analysis and Environmental Assessment11h00 Data Analysis and Environmental Assessment 

 11h30 Way forward for the CDA approaches implementations in Spain11h30 Way forward for the CDA approaches implementations in Spain 

 11h45 Conclusions11h45 Conclusions 

 12h00 Round Table. Q&A session12h00 Round Table. Q&A session 

 12h40 Wrap up & End of Forum12h40 Wrap up & End of Forum 

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RETA-CDA Workshop

Madrid, 18

Workshop Objectives



 To present the RETA-CDA project and To present the RETA-CDA project and AIRE related activitiesAIRE related activities



 To show project objectives, context and To show project objectives, context and activities performedactivities performed



 To preseTo present RETA-CDA nt RETA-CDA flight demonstrations’flight demonstrations’ results to results to thethe

ATM community ATM community



 COCO₂₂ emissions reductionemissions reduction



 To exchange feedback with other users / To exchange feedback with other users / stakeholdersstakeholders

Madrid, 18

RETA-CDA

Alain Siebert, SJU Alain Siebert, SJU

AIRE Activities in Europe

(3)

Madrid, 18

RETA-CDA

Luis Chocano, INECO Luis Chocano, INECO

RETA-CDA

Project Presentation

RETA-CDA Workshop

Madrid, 18



Born under the

Atlantic Interoperability Initiative

to Reduce Emissions (AIRE) programme

between the European Commission and the FAA

(Uni

(United

ted Stat

States,

es, und

under

er the

the man

manage

agemen

ment o

t off the

the

SESAR Joint Undertaking (SJU)

RETA-CDA

(4)

RETA-CDA Workshop

Madrid, 18



Objective: To perform Integrated Flight Trials and

Demonstrations in Terminal Area (TMA) using

Continuous Descent Approaches (

CDA

))

RETA-CDA

RETA-CDA Workshop

Madrid, 18

RETA-CDA



The aim is the reduction

of CO

₂₂

emission and

optimization of the fuel

consumption

(5)

RETA-CDA Workshop

Madrid, 18



INECO as Project Coordinator and environmental

analyses responsible

RETA-CDA Consortium members



Aena as Air Navigation Service Provider and

Airport Manager



Iberia as airline performing the CDA procedures

RETA-CDA Workshop

Madrid, 18

Two-phase project



Phase 1



 Detailed procedure definitionDetailed procedure definition



 Selection of airport and aircraft fleetSelection of airport and aircraft fleet



 Identification of the data collection and their analysisIdentification of the data collection and their analysis



Phase 2



 Performance of flight trials, data gathering andPerformance of flight trials, data gathering and

environmental analyses environmental analyses

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RETA-CDA Workshop

Madrid, 18



Flight demonstrations performed:



 During June, July, August until During June, July, August until September 2009September 2009



 In Madrid-Barajas Terminal Area (TMA)In Madrid-Barajas Terminal Area (TMA)



 North configuration & night schedule (00h00 to 07h00)North configuration & night schedule (00h00 to 07h00)



 With A320 and A340 Iberia commercial flightsWith A320 and A340 Iberia commercial flights



 Additionally data studied from flights performed duringAdditionally data studied from flights performed during

March and May March and May

RETA-CDA

RETA-CDA Workshop

Madrid, 18



 More thanMore than 1000 flights studied1000 flights studied

RETA-CDA

505 505 115 115 620 620 June

June --SepteSeptembermber

RETA-CDA Trial RETA-CDA Trial Period Period 387 387 North Configuration. North Configuration. VALID VALID 44 44 South Configuration. South Configuration. NOT VALID NOT VALID 431 431 Total of flights Total of flights Mar

March -ch - MayMay Additional Data Additional Data

1051

892

505



 More than 800 specific valid CDAMore than 800 specific valid CDA 

(7)

RETA-CDA Workshop

Madrid, 18

RETA-CDA



 Preliminary filtering of data based on specific project criteriaPreliminary filtering of data based on specific project criteria

to differentiate CDA from No-CDA to differentiate CDA from No-CDA



 Statistical studyStatistical study 

 Calculations made for the A320 family, A340-300 and A340-Calculations made for the A320 family, 300 and

A340-600 600

Madrid, 18

RETA-CDA

Madrid TMA and Airport

context

Mariano Vega, Aena Mariano Vega, Aena

(8)

RETA-CDA Workshop

Madrid, 18



 Madrid-Barajas airport scenarioMadrid-Barajas airport scenario 

 Located inside Madrid TMA, managed from Madrid APPLocated inside Madrid TMA, managed from Madrid APP 

 North configuration & night North configuration & night scheduleschedule(00h00 to 07h00 local time)(00h00 to 07h00 local time)



 Landings in runway 33 Right (ILS CATII/III)Landings in runway 33 Right (ILS CATII/III)

Operational Environment Description

Runway Runway 33R 33R RETA-CDA Workshop RETA-CDA Workshop 1616 Madrid, 18



 ATM Organization around the Madrid Barajas airportATM Organization around the Madrid Barajas airport



 TMA:TMA: Covering the airspace from 300m over the ground untilCovering the airspace from 300m over the ground until

FL245. It is a category A airspace apart from the VFR corridors FL245. It is a category A airspace apart from the VFR corridors (category C)

(category C) 

 CTR :CTR : Covering the Covering the airspace airspace from the from the ground ground until until 300m 300m over theover the

ground. This is a category D airspace ground. This is a category D airspace 

 ATZ:ATZ: Covering the airspace controlled by the airport tower. TheCovering the airspace controlled by the airport tower. The

extension covers 8 km around the airport till 900m over the ground extension covers 8 km around the airport till 900m over the ground

Operational Environment Description

(9)

RETA-CDA Workshop

Madrid, 18

400520N 400520N 0020930W 0020930W 413006N 413006N 0022208W 0022208W 413000N 413000N 0041215W 0041215W 411030N 411030N 0043640W 0043640W 395620N 395620N 0043640W 0043640W 393310N 393310N 0040805W 0040805W 393525N 393525N 0025505W 0025505W VTB VTB 394622 394622 0032750 0032750 TLD TLD NVS NVS SIE SIE RBO RBO SSY SSY CNR CNR BAN BAN PDT PDT VJZ VJZ GE GE 395321N 395321N 0022748W 0022748W 400000N 400000N 0022200W 0022200W 400000N 400000N 0021740W 0021740W 410204N 410204N 0020930W 0020930W 410200N 410200N 0023000W 0023000W 411800N 411800N 0023000W 0023000W 

 To let dependingTo let depending

parallel approaches parallel approaches

Operational Environment Description



 TMA CharacteristicsTMA Characteristics

RETA-CDA Workshop

Madrid, 18



 Airspace sectors for North ConfigurationAirspace sectors for North Configuration

Operational Environment Description

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RETA-CDA Workshop

Madrid, 18

Operational Environment Description



 The Runway 33R is provided by The Runway 33R is provided by Standard Instrument ArrivalsStandard Instrument Arrivals

(STAR) (STAR)



 Descent Planning only with prior ATC clearance over theDescent Planning only with prior ATC clearance over the

clearance limit points at FL 140 and over established IAF: clearance limit points at FL 140 and over established IAF:



 TOBEK at 5000ftTOBEK at 5000ft 

 ASBIN at 6000ftASBIN at 6000ft

Madrid, 18

RETA-CDA

Procedure Definition

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RETA-CDA Workshop

Madrid, 18



The traffic is transferred to Madrid TMA from

Madrid ACC descending to a procedure Flight

Level



Both ATC units work in close coordination to avoid

descend interruption at common boundary



Follows the North configuration STAR routes

Procedure Definition

RETA-CDA Workshop

Madrid, 18

Procedure Definition



STAR procedures according to the origin of the

flight

T Trraaffffiic Oc Orriiggiinn TTMMA A SSTTAARR A340 A340 B Buueennoos s AAiirreess SOSOTTUUK K 11CC TTLLD D 11CC M Meexxiicco Do DFF BBAARRDDI I 11CC ZZMMR R 33CC A320 A320 L Laaggooss PPRRAADDO O 11DD VVIILLLLA A 11DD D Daakkaarr SSOOTTUUK K 11CC C Caaiirroo PRPRAADDO O 11DD

(12)

RETA-CDA Workshop

Madrid, 18

Demonstration Plan

RETA-CDA Workshop

Madrid, 18

Procedure Definition



Proceeds to the ILS precision approach to the

runway 33R



Two initial approach tracks



 TOBEK reference pointTOBEK reference point



 ASBIN reference pointASBIN reference point



Both points finish in a common intermediate

approach track at 5000ft



(13)

RETA-CDA Workshop

Madrid, 18



Precision approach to the runway 33R

RETA-CDA Workshop

Madrid, 18

Flight Operational Constraints



ATC’

ATC’ss const

constrain

raints

ts



No operational constraintsNo operational constraints



Procedures in compliance with Spanish Procedures in compliance with Spanish regulationsregulations



Routes free of restricted or segregated airspaceRoutes free of restricted or segregated airspace



Traffic situation did not difficult the completion of CDATraffic situation did not difficult the completion of CDA

procedures procedures



ATC always had the possibility of abort tATC always had the possibility of abort the CDAhe CDA

procedure procedure

(14)

RETA-CDA Workshop

Madrid, 18



Phraseology used in the trials:



 CREW:CREW: “Madrid IBEXXX RETA-CDA flight request“Madrid IBEXXX RETA-CDA flight request Continuous Descent. ”

Continuous Descent. ”



 ATC:ATC: “IBEXXX cleared for continuous descent and ILS“IBEXXX cleared for continuous descent and ILS approach to Barajas RWY33R”

approach to Barajas RWY33R”



If, for any reason the CDA had to be interrupted:



 ATC:ATC: “IBEXXX discontinue CDA (alternative“IBEXXX discontinue CDA (alternative clearance)”

clearance)”



 CREW:CREW: “Madrid IBEXXX unable to continue CDA,“Madrid IBEXXX unable to continue CDA, request…”

request…”

Phraseology

Madrid, 18

RETA-CDA

ATC

Os

Per

spe

cti

ve

(15)

RETA-CDA Workshop

Madrid, 18

ATCO

ATCOs

s Pers

Perspec

pective

tive



No perception of any extra difficulty



Controllers reduced interventions to maintain

safety traffic and queue organization



Clearance for CDA given by the approach ATC at

the same time that clearance for ILS

RETA-CDA Workshop

Madrid, 18

ATCO

ATCOs

s Pers

Perspec

pective

tive



To implement CDA as standard manoeuvre in

LEMD, it would be preferable, to have specific

CDA arrival procedures developed. This would:



 provide a clear separation between CDA trafficprovide a clear separation between CDA traffic



(16)

Madrid, 18

RETA-CDA

Jose Luis Moreta Jose Luis Moreta Luis Ferná

Luis Fernándezndez de Bobadillde Bobadilla a

On board

Operational Procedures

RETA-CDA Workshop

Madrid, 18

Aircraft Description



Iberia A340/320

families

characteristics

CFM 56-5B CFM 56-5B A320-214 A320-214 162/171pax 162/171pax CFM 56-5A CFM 56-5A A320-211 A320-211 A 320 A 320 SHORT SHORT MEDIUM MEDIUM RANGE RANGE 352 352 Rol

Rollsls RoyRoycece TRETRENT 5NT 50000

A340-600 A340-600 A 340 A 340 LONG LONG RANGE RANGE 260 260 CFM 56-55C CFM 56-55C A340-300 A340-300 Engines

Engines Passenger Passenger

Configuration Configuration A319-111 A319-111 CFCFM M 5566--55BB 114411ppaaxx A321-211 A321-211 A321-212 A321-212 CFCFM M 5566--55BB 220000ppaaxx

(17)

RETA-CDA Workshop

Madrid, 18

Aircraft Description



Auto

Autoflig

flight

ht syste

systems:

ms:



 A340A340: 2 FMGS Honeywell standard : 2 FMGS Honeywell standard L10A10, P2A10 or L10A10, P2A10 or

P3A7 P3A7



 A320A320: 2 FMGS Honeywell FMS 2 (standard P1C8 or P1: 2 FMGS Honeywell FMS 2 (standard P1C8 or P1

C11) C11)

RETA-CDA Workshop

Madrid, 18



The FMGS performs the following functions

::



 Two types of guidance: SELECTED and MANAGEDTwo types of guidance: SELECTED and MANAGED



 Flight planning: LATERAL and VERTICALFlight planning: LATERAL and VERTICAL



 The guidance function controls: AutoPilot, Flight Director The guidance function controls: AutoPilot, Flight Director

and AutoThrust and AutoThrust



 Guidance modes: LATERAL and VERTICALGuidance modes: LATERAL and VERTICAL

Aircraft Description

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RETA-CDA Workshop

Madrid, 18



Data gathered from A340 and A320 Digital Flight

Data Recorder (DFDR)



 Records the mandatory parametersRecords the mandatory parameters



 Can store the last 25 hours on a fireproof and shockproof Can store the last 25 hours on a fireproof and shockproof

device device

Aircraft Description

RETA-CDA Workshop RETA-CDA Workshop 3636 Madrid, 18

Procedure Definition



RETA-CDA demonstration performed:



 During suDuring summer 200mmer 2009: June –9: June – SepteSeptember mber



 With Iberia airplanes coming from:With Iberia airplanes coming from:



 Lagos (DNMM/LOS), Dakar (GOOY/DKR) and CairoLagos (DNMM/LOS), Dakar (GOOY/DKR) and Cairo

(HECA/CAI):

(HECA/CAI): A320 FamilyA320 Family



 Buenos Aires (SAEZ/EZE) and Mexico DFBuenos Aires (SAEZ/EZE) and Mexico DF

(MMMX/MEX):

(MMMX/MEX): A340 FamilyA340 Family



 Other flights with the same fleet and origins, and fromOther flights with the same fleet and origins, and from

Guinea (FGSL/SSG), Sao Paulo (

Guinea (FGSL/SSG), Sao Paulo ( SBGR/SAO-GRU) andSBGR/SAO-GRU) and

Santiago (SCEL

Santiago (SCEL/SCL), not /SCL), not performing CDAsperforming CDAs analyzed toanalyzed to

be used as a baseline be used as a baseline

(19)

RETA-CDA Workshop

Madrid, 18



On board constraints



CDAsCDAs always flown always flown over MEA over MEA until established until established in ILSin ILS

LOC LOC



250 kts250 kts IAS flown bIAS flown below 10.000ft elow 10.000ft AGL by AGL by Iberia safetyIberia safety

procedure procedure



STARs

STARs constraint

constraints remove

s removed for

d for RETA-CDA

RETA-CDA trials

trials



 Altitudes and speedsAltitudes and speeds



Weather constraints



 Summer thunderstormsSummer thunderstorms →→Wind direction changesWind direction changes →→

runway changes

runway changes →→ trajectory changestrajectory changes



 In these cases, the CDA procedure has In these cases, the CDA procedure has been interruptedbeen interrupted

Flight Operational Constraints

RETA-CDA Workshop

Madrid, 18

On board Operational Procedure



Select the expected STAR in FMS before descent



When cleared CDA by ATC, pilots:



 Check the cleared STAR in FMSCheck the cleared STAR in FMS



 Deselect speed and level/altitude restrictions associated toDeselect speed and level/altitude restrictions associated to

the STAR the STAR



 Complete it by applying flight techniques and speeds thatComplete it by applying flight techniques and speeds that

they consider adequate they consider adequate

(20)

Madrid, 18

RETA-CDA

Jose Luis Moreta Jose Luis Moreta Luis Ferná

Luis Fernándezndez de Bobadillde Bobadilla a

Pilo

ts’

pers

pect

ive

RETA-CDA Workshop

Madrid, 18

Iberia flight trials preparation



 Definition of internal specific ad-hoc activities for the RETA-Definition of internal specific ad-hoc activities for the

RETA-CDA trials CDA trials



 RETA-CDA on-board procedure definitionRETA-CDA on-board procedure definition



 Internal communications from Flight Operation to pilotsInternal communications from Flight Operation to pilots



 Definition of internal procedure for gathering CDA flight dataDefinition of internal procedure for gathering CDA flight data

and

(21)

RETA-CDA Workshop

Madrid, 18

Pilo

Pilots’

ts’ Pers

Perspec

pective

tive



FMS preparation required higher level of attention



No perception of a higher workload during the descent

phase of the CDA procedure



Coordination with ATC had to be clearly understood



Most flights were allowed to perform CDA from TOD



Crew concentration on flight and navigation procedures

are enhanced due to the reduced rate of ATC

communications

RETA-CDA Workshop

Madrid, 18

Pilo

Pilots’

ts’ Pers

Perspec

pective

tive



To perform CDA procedures it would be preferable,

to have specific CDA arrival procedures incorporated

in the FMS database. This would:



 improve coordination between ATC and crews,improve coordination between ATC and crews,



 avoid additional workload andavoid additional workload and



(22)

RETA-CDA Workshop

Madrid, 18

Pilo

Pilots’

ts’ Pers

Perspec

pective

tive



Crew unanimously in favour of these type of

approaches



 Not complicatedNot complicated



 Positive environmental impactPositive environmental impact



 Positive economic impactPositive economic impact



IBERIA pilots are very keen on supporting and

performing any operational procedure which will

reduce CO

₂₂

emissions

Madrid, 18

RETA-CDA

Data Analysis and

Environmental Assessment

Peter Lubrani, INECO Peter Lubrani, INECO Eduardo García, INECO Eduardo García, INECO

(23)

RETA-CDA Workshop

Madrid, 18

Madrid, 18thth_{Feb 2010}_{Feb 2010} _RETACDA-_{RETACDA- Workshop}_Workshop 4545

Madrid, 18

Data Analysis and Environmental Assessment



 Study Frame (data and window of study)Study Frame (data and window of study)



 Trial flights from June to September Trial flights from June to September



 Period (00:00 till 7:00)Period (00:00 till 7:00)



 Origin of flights 7 (CAI, DKR, LOS, EZE, MEX,Origin of flights 7 (CAI, DKR, LOS, EZE, MEX, SCL & SSGSCL & SSG))



 Aircraft studied A320 Family, A340-300/600Aircraft studied A320 Family, A340-300/600



 More than a thousand flights studiedMore than a thousand flights studied



 Assessment of flight performance fromAssessment of flight performance fromFL210.FL210.

RETA-CDA Workshop

Madrid, 18

Data Analysis and Environmental Assessment

  ResultsResults AIRCRAFT AIRCRAFT TYPE TYPE FUE

FUEL BURL BURN (KGN (KG) FRO) FROM FL2M FL21010 TIMTIME (MIE (MIN) TO DN) TO DESCESCENDEND FROFROM FL2M FL21010 C

CDDAA NNOO--CCDDAA CCDDAA NNOO--CCDDAA

A320 A320

Upper Reference Limit (Percentile Upper Reference Limit (Percentile

97.5%)

97.5%) 229922 445544 1166,,55 1199,,55

Average (ccg)

Average (ccg) 222244 330099 1144,,00 1166,,00

Lower Reference Limit (Percentile 2.5%)

Lower Reference Limit (Percentile 2.5%) 114499 223388 1111,,55 1133,,11

A340 A340

Upper Reference Limi Upper Reference Limit t (Percentile(Percentile

97.5%)

97.5%) 992266 11550055 2222,,00 2255,,33

Average (ccg)

Average (ccg) 668877 994455 1177,,44 2200,,33

A340-600 A340-600

Upper Reference Limi Upper Reference Limit t (Percentile(Percentile

97.5%)

97.5%) 11006699 11773366 1188,,55 2222,,88

Average (ccg)

Average (ccg) 882277 11008888 1155,,88 1177,,88

AIRCRAFT

TYPE

FUEL BURN SAVINGS FUEL BURN SAVINGS (KG) FROM FL210 (KG) FROM FL210

TIME SAVINGS (MIN) TO TIME SAVINGS (MIN) TO DESCEND FROM FL210 DESCEND FROM FL210 A320

A320 Average (ccg)Average (ccg) 2266% % ((885 5 KKGG)) 1133% % ((2 2 mmiinn))

A340

A340 Average (ccg)Average (ccg) 2277% % ((22558 8 KKGG)) 1144% % ((22,,9 9 mmiinn))

A340-600

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RETA-CDA Workshop

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Madrid, 18thth_{Feb 2010}_{Feb 2010} 4747

Madrid, 18

Data Analysis and Environmental Assessment



 Savings inSavings in €€ and Cand CO2 x fliO2 x flightght

Savings Savings (x (x flight)flight) A

A//CC AAvveerraagge e FFuueell

A320 A320 85.085.0 kgkg A340-300 A340-300 258258 kgkg A340-600 A340-600 261261 kgkg 

 Savings inSavings in €€ and Cand CO2 x 1 WEO2 x 1 WEEKEKof Iberia typical of Iberia typical scheduleschedule 

 Savings inSavings in €€ and and CO2 x CO2 x 1 YEA1 YEARRof Iberia typical scheduleof Iberia typical schedule

RETA-CDA Workshop

Madrid, 18

Data Analysis and Environmental Assessment



 Savings inSavings in €€ and Cand CO2 x fliO2 x flightght

Typical weekly schedule Typical weekly schedule

Fleet Mix Fleet Mix AA33220 0 AA33440 0 AA334400--660000 Nº. of flights Nº. of flights 1122778 8 22443 3 118822 T TOOTTAA L L fflliigghhttss 11770033

TOTAL MAX. SAVINGS TOTAL MAX. SAVINGS

Fuel (tonne) Fuel (tonne) 2121 99 CO2 (tonne) CO2 (tonne) 689.3689.3 Savings (€) Savings (€) 100119.5100119.5 

(25)

RETA-CDA Workshop

Madrid, 18

Data Analysis and Environmental Assessment



 Savings inSavings inSavings inSavings in€ and C€€€ and Cand CO2 x fliand CO2 x 1 WEO2 x flightO2 x 1 WEEKghtEKof Iberia typical of Iberia typical scheduleschedule 

 Savings inSavings in €€ and and CO2 x CO2 x 1 YEA1 YEARRof Iberia typical scheduleof Iberia typical schedule

Fuel (tonne) Fuel (tonne) 1138811388 CO2 (tonne) CO2 (tonne) 35843.635843.6 Sav Savingingss (€)(€) 5.2M5.2M TOTAL MAX. SAVINGS TOTAL MAX. SAVINGS

Fuel (tonne) Fuel (tonne) 1138811388 CO2 (tonne) CO2 (tonne) 35843.635843.6 Sav Savingingss (€)(€) 5.2M5.2M RETA-CDA Workshop RETA-CDA Workshop 5050 Madrid, 18

Madrid, 18

Data Analysis and Environmental Assessment Data Analysis and Environmental Assessment

Fuel (tonne) Fuel (tonne) 1138811388 CO2 (tonne) CO2 (tonne) 35843.635843.6 Sav Savingingss (€)(€) 5.2M5.2M

(26)

RETA-CDA Workshop

Madrid, 18

ENVIRONMENT

CO2 (tonne) CO2 (tonne) 35843.635843.6 CO2 (tonne) CO2 (tonne) 35843.635843.6 Picture: PA Picture: PA Picture: Picture: PA PA RETA-CDA Workshop RETA-CDA Workshop 5252 Madrid, 18

Madrid, 18

ENVIRONMENT

CO2 (tonne) CO2 (tonne) 35843.635843.6 CO2 (tonne) CO2 (tonne) 35843.635843.6 Picture: PA Picture: PA

0.5%

Do

me

st

ic

Av

iat

io

n

ANSP ANSP Picture: Picture: PA PA

(27)

RETA-CDA Workshop

Madrid, 18

ENVIRONMENT

0.5%

Do

me

st

ic

Av

iat

io

n

ANSP ANSP

Airline

ETS, Allowances, growth ETS, Allowances, growth Picture: Picture: PA PA RETA-CDA Workshop RETA-CDA Workshop 5454 Madrid, 18

Madrid, 18

ENVIRONMENT

0.5%

Do

me

st

ic

Av

iat

io

n

ANSP ANSP

Airline

ETS, Allowances, growth ETS, Allowances, growth Picture:

Picture: PA PA

(28)

RETA-CDA Workshop

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

 Statistical Analysis MethodologyStatistical Analysis Methodology

CDA Flights Data CDA Flights Data

IBERIA FLIGHT IBERIA FLIGHT DATA Repository DATA Repository

NON CDA Flights Data NON CDA Flights Data

STA

STATISTICTISTIC AL DAAL DATA TA ANALYSISANALYSIS

METAR Files METAR Files Radar Data Radar Data Pilot's and Pilot's and ATC ATC''s Reportss Reports

EMISSIONS ANALYSIS EMISSIONS ANALYSIS

(Fuel savings in Tons, CO2 Savings (Fuel savings in Tons, CO2 Savings in Tons)in Tons)

CDA CDA DEFINITION CRITERIA DEFINITION CRITERIA RETA-CDA Workshop RETA-CDA Workshop 5656 Madrid, 18

Madrid, 18



 Ad-Hoc Analysis ToolAd-Hoc Analysis Tool

TIME (min) TIME (min) A A L L T T I I T T U U D D E E ( ( F F L L ) ) CDA flight CDA flight NO CDA flight NO CDA flight

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RETA-CDA Workshop

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

S S p p e e e e d d ( ( K K t t s s ) ) A A l l t t i i t t u u d d e e ( ( F F L L ) ) N N 1 1 ( ( R R P P M M ) ) RETA-CDA Workshop RETA-CDA Workshop 5858 Madrid, 18

Madrid, 18



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RETA-CDA Workshop

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

RETA-CDA Workshop

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

CRITERIA1: CDA definition as given by Eurocontrol, FAA and Green ApproachesCRITERIA1: CDA definition as given by Eurocontrol, FAA and Green Approaches



CRITERIA 2: the N1% profile should be as much as possible around the idle value of thrustCRITERIA 2: the N1% profile should be as much as possible around the idle value of thrust

for the aircraft. for the aircraft.



CRITERIA 3: CDA flights for the A320 Family will be found at orCRITERIA 3: CDA flights for the A320 Family will be found at or above FL150 at 12 minutesabove FL150 at 12 minutes

from landing, while for the A340

from landing, while for the A340 Family the same is valid bFamily the same is valid but atut at 14 minutes.14 minutes.



CRITERIA 4: The CDA flights will be located in a cluster of points located in the upper leftCRITERIA 4: The CDA flights will be located in a cluster of points located in the upper left

corner on a graph reflecting Fuel burn vs. Altitude. corner on a graph reflecting Fuel burn vs. Altitude.

RETACDA-RETACDA- WorkshopWorkshop 6060

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

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RETA-CDA Workshop

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

 CDA Definition CriteriaCDA Definition Criteria



CRITERIA 2: the CRITERIA 2: the N1% profile should be as much as N1% profile should be as much as possible aroundpossible around the idle value of thrustthe idle value of thrust

for the aircraft. for the aircraft.

RETA-CDA Workshop

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

CDA flight

No-CDA flight

No-CDA flight 

CRITERIA 3: CDA flights for the A320 Family will be found at orCRITERIA 3: CDA flights for the A320 Family will be found at or above FL150 at 12 minutesabove FL150 at 12 minutes

from landing, while for the A340

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

CDA flight CDA flight No-CDA flight No-CDA flight A A L L T T I I T T U U D D E E ( ( F F L L ) ) 1 1 2 2 m m i i n n u u t t e e s s t t o o T T H H R R Fuek

Fuek BurntlastBurntlast 12 12 minutminutes es ofof flighflightt 

CRITERIA 4: The CDA flights will be located in a cluster of points located in the upper leftCRITERIA 4: The CDA flights will be located in a cluster of points located in the upper left

corner on a graph reflecting Fuel burn vs. Altitude. corner on a graph reflecting Fuel burn vs. Altitude.

RETA-CDA Workshop

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Data Analysis and Environmental Assessment



 ConclusionsConclusions



 Aircraft Performance Analysis Tool;Aircraft Performance Analysis Tool;



 Calculated average Fuel savings for the A320 Family & the A340-Calculated average Fuel savings for the A320 Family & the

A340-300/600; 300/600; 

 The vertical dispersion of the CDAs is smaller than the NoCDAs,The vertical dispersion of the CDAs is smaller than the NoCDAs,

which is reflected also in the Fuel Burn dispersion values; which is reflected also in the Fuel Burn dispersion values; 

 Vertical proVertical profiles of CDAsfiles of CDAs are higheare higher than NoCDAr than NoCDAs;s;



 A preliminary study from ToD to FL210 showed that only 3-4% of A preliminary study from ToD to FL210 showed that only 3-4% of

the flights made at anytime a level segment; the flights made at anytime a level segment; 

 Consequently, for this case, the most critical area for fuel burnConsequently, for this case, the most critical area for fuel burn

savings is below FL210. savings is below FL210.

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Data Analysis and Environmental Assessment

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RETA-CDA

CDA implementation

in Spain

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RETA-CDA Workshop

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RETA-CDA EXPERIENCE



No special difficulties for ATC during the used time

period



CDA

CDA culture needed

culture needed to

to optimise

optimise benefits

benefits



Effective

collaboration

between

aviation

authorities, ANSP and Operators is fundamental



Traffic demand is the main parameter to design

CDA Implementation in Aena Airports

RETA-CDA Workshop

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TRAFFIC DEMAND CLASSIFICATION



LOW DEMAND:



 Traffic separation/sequencing is rarely needed for CDATraffic separation/sequencing is rarely needed for CDA



MIDIUM DEMAND:



 Traffic need to be sequenced to a given point beforeTraffic need to be sequenced to a given point before

starting CDA starting CDA



HIGH DEMAND:



 High sequencing is needed and complete CDAHigh sequencing is needed and complete CDA

implementation is not feasible without provoking strong implementation is not feasible without provoking strong delays

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AIRPORT CLASIFICATION



PHASE 1 (2010):



 Airport operating H24 with no operational constraintsAirport operating H24 with no operational constraints

during night period during night period



PHAS

PHASE 2 (2

E 2 (2011 -

011 - 201

2012):

2):



 Airports with no operational constraints and with noAirports with no operational constraints and with no

specific technical for CDA implementation specific technical for CDA implementation



PH

PHAS

ASE 3

E 3 (2

(201

013 -

3 - ):

):



 Airports in which full CDA implementation has a strongAirports in which full CDA implementation has a strong

impact on Airport capacity. Partial implementation will be impact on Airport capacity. Partial implementation will be analysed

analysed

RETA-CDA Workshop

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

 AIRPORTS PHASE 1AIRPORTS PHASE 1



 ALICANTE, BARCELONALICANTE, BARCELONA, GIRONA, A, GIRONA, GRAN CANARIA, IBIZA,GRAN CANARIA, IBIZA,

MADRID BARAJAS, MALAGA, PALMA DE MALLORCA, MADRID BARAJAS, MALAGA, PALMA DE MALLORCA, TENERIFE SUR, VALENCIA.

TENERIFE SUR, VALENCIA. (DURING NIGHT PERIOD)(DURING NIGHT PERIOD)





 A CORUÑA, ALMERIA, ASTURIAS, BURGOS, CIUDAD REAL,A CORUÑA, ALMERIA, ASTURIAS, BURGOS, CIUDAD REAL,

GRANADA, EL HIERRO, JEREZ, GOMERA, LA PALMA, GRANADA, EL HIERRO, JEREZ, GOMERA, LA PALMA, LOGROÑO, MELILLA, PAMPLONA, SAN SEBASTIAN, LOGROÑO, MELILLA, PAMPLONA, SAN SEBASTIAN, SANTANDE

SANTANDER, SANTIAGO, VIGO, R, SANTIAGO, VIGO, VITORIAVITORIA





 ALICANTE, BARCELONALICANTE, BARCELONA, GIRONA, A, GIRONA, GRAN CANARIA, IBIZA,GRAN CANARIA, IBIZA,

MADRID BARAJAS,MALAGA PALMA DE MALLORCA, MADRID BARAJAS,MALAGA PALMA DE MALLORCA, TENERIFE SUR, VALENCIA.

TENERIFE SUR, VALENCIA. (DURING DAY PERIOD)(DURING DAY PERIOD)



 BILBAO, FUERTEVENTURA, LANZAROTE, MENORCA,BILBAO, FUERTEVENTURA, LANZAROTE, MENORCA,

SEVILLA, TENERIFE NORTE SEVILLA, TENERIFE NORTE

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Madrid, 18

RETA-CDA

Conclusions

Luis Chocano, INECO Luis Chocano, INECO

RETA-CDA Workshop

Madrid, 18

RETA-CDA



The implementation of CDA procedures in

Terminal Areas has a positive environmental

impact, with a

significant reduction CO

₂₂

emissions



A great number of trials have been performed in

Madrid TMA



 The results showThe results show important savings in COimportant savings in CO₂₂ emissions,emissions, around 25%

around 25%



 Analyses also showAnalyses also show time savingstime savings from FL 210 tofrom FL 210 to

threshold

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RETA-CDA Workshop

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Conclusions



Airlines are also able to

Airlines are also able to profit the economic

profit the economic

savings:



Fuel burn reduction



Savings in CO

₂₂

may translate into less need to

buy allowances at ETS market prices



CO

₂₂

emissions reduction in TMA will help to

achieve the overall SESAR objective of 10%

emissions reductions



Noise impact is minimized in the surroundings of

the airport as the aircraft CDA approach is at a

higher altitude and idle thrust

RETA-CDA Workshop

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Conclusions



The results validate the project objective:

Continuous Descent Approaches (CDAs)

in the TMA deliver significant

environmental and economic benefits

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RETA-CDA Workshop

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Conclusions



Both pilots and ATC are unanimously in favour of

implementing CDA procedures



Recommendations to have specific CDA published

arrival procedures



And incorporated in the FMS databaseAnd incorporated in the FMS database



The experience has been of great value for the

future implementation of CDA in the airports of the

Aena

Aena netw

network in

ork in Spa

Spain.

in.



 AeAenana PhPhasase-e-1 pl1 plan tan to imo implplememenent REt RETATACDCDA-lA-likikee

operations in several airports in Spain in 2010 operations in several airports in Spain in 2010

RETA-CDA Workshop

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Conclusions



Recommendations discussed include:



To assess the feasibility of expanding the

application of CDA approaches to other airport

contexts and not only at night hours with low

traffic



To assess time requirements (RTA/ETA) applied

to CDA



Key point to ease the control sequencing and

merging activity and promote CDA

implementation

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RETA-CDA Workshop

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RETA-CDA

Madrid, 18

Thank you very much for

your attention

Questions?

Mariano Vega, Aena Mariano Vega, Aena Jose L. Moreta, Iberia Jose L. Moreta, Iberia

Luis Fdez. de Bobadilla, Iberia Luis Fdez. de Bobadilla, Iberia Peter Lubrani, INECO,

Peter Lubrani, INECO, Eduardo Garcia, INECO Eduardo Garcia, INECO Luis Chocano, INECO,