prepared by
(Alenia Aeronautica)

Vehicle ITD
Eco-design
For Airframe and Systems
Leaders: Dassault Aviation
& Fraunhofer Institute
Smart Fixed-Wing
Aircraft
Leaders: Airbus
& SAAB
Green Regional
Aircraft
Leaders: Alenia
& EADS CASA
Green
Rotorcraft
Leaders: Eurocopter
& AgustaWestland
Sustainable and
Green Engines
Leaders: Rolls-
Royce & Safran
Clean Sky Technology Evaluator
Systems for Green
Operations
Leaders: Liebherr
& Thales
ITD: Integrated Technology Demonstrator
Clean Sky Info Day – Toulouse 1rst February 2011
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

ALENIA AERONAUTICA
EADS - CASA
ALENIA AERONAUTICA affiliates:
 Alenia Aermacchi

Alenia Sia
 Alenia Improvement

SuperJet International
 Fraunhofer-Gesellschaft




LIEBHERR
ROLLS – ROYCE
SAFRAN
THALES
ROLLS ROYCE affiliate:
 Rolls Royce Deutschland
SAFRAN affiliates:
 Snecma

Messier-Dowty
 Hispano-Suiza
THALES AVIONICS affiliate:

Thales Avionics Electrical System 3
Clean Sky Info Day – Toulouse 1rst February 2011

 AIR GREEN Cluster
 with following members:
 Piaggio, Italy, single-voice Cluster's representative
 Polo delle S&T, Univ. Naples, Italy
 Centro Sviluppo Materiali (CSM), Italy
 IMAST, Italy (technological district)
 FoxBit, Italy
 Sicamb, Italy
 Politech. Turin, Italy

Univ.
Bologna/Forlì, Italy
 Univ. Pisa, Italy
 ATR
 CIRA PLUS Cluster
 with following members:
 CIRA, Italy, single voice Cluster's representative
 Dema, Italy

Aerosoft, Italy
 INCAS, Romania
 Elsis, Lithuania
A sizeable amount of activities are reserved to
Call for Proposals open to
European Institutions and
Industry: we expect to reach about 53 additional partners
 HELLENIC AEROSPACE INDUSTRY
 ONERA
For end of this year, we foresee about 85 participants involved in GRA!!
Clean Sky Info Day – Toulouse 1rst February 2011
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Rolls Royce
London
Vilnius
Cira Plus – (Elsis )
Liebherr
Atr
Eads-Casa
C-130
Madrid
Safran
Thales
Paris & Neuilly
Onera compatible loading system
Chatillon
Toulouse
Fraunhofer
Munc hen
AirGreen ( Poli To)
Turin Bologna
AirGreen
(Piaggio, CSM,
Sicamb )
Cira Plus – (Incas)
AirGreen (UniBo)
AirGreen (UniPI)
Pisa
Romea
Naples
Alenia Aeronutica
Air Green (Imast, Foxbit, UniNa)
Cira Plus - (Cira/Dema/Aerosoft )
Foggi a
Bucharest
Schimatari
Landing gear b for unprepared strips
To ulouse uilt
16 cockpit
Hellenic Aerospace provide excellent visibility
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Clean Sky Info Day – Toulouse 1rst February 2011


GRA program was launched on 1 st September 2008 (GRA Kick-Off: October, 7 th - 8 th
2008), and will allow future regional aircraft to obtain weight reduction, aerodynamics efficiency and an higher level of operative performance w.r.t
. “year 2000” technology level.

In order to achieve these so challenging results, the aircraft will be entirely revisited in all of its aspects. In fact GRA consists of five technological domains: Low Weight
Configuration (LWC), Low Noise Configuration (LNC), All Electric Aircraft (AEA), Mission
& Trajectory Management (MTM) and New Configuration (NC).
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Clean Sky Info Day – Toulouse 1rst February 2011

The Green Regional Aircraft ITD: Technical organization
-------------------------------
SAGE ITD
-------------------------------
Low Weight Configuration
(ED for Airframe)
Low Noise Configuration
Enabling Technologies
GRA 2.1
LNC Requirements
& Architectures
Alenia
GRA 2.2
LNC Enabling
Technologies
Alenia
GRA 2.3
LNC / LC
Application Studies
All Electrical Aircraft
GRA 1.4
Application studies for LWC
HAI
LWC Definition of
Demonstration
GRA 2.4
Definition of LNC / LC
Demonstration
Alenia
GRA 2.5
LNC Demo wing preparation & test
Alenia
LNC Demo Landing Gear
Preparation & Test
Safran
GRA 2.7
LNC Analysis &
Final Reporting
Air Green
GRA 3.5
Demonstration
Preparation
& test for AEA
ATR
GRA 4
Mission & Trajectory
Management
Alenia
Simulator Dem. for MTM
GRA 4.5
Demonstration
Preparation & test for MTM
Alenia
Start activities : within 2010
Start activities : after 2010 Start activities T0= 1 st September 2008
Clean Sky Info Day – Toulouse 1rst February 2011
GRA 5.1
NC A/C high level
GRA 5.5
Demonstration
Preparation & test for
NC
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Innovative structures (Low Weight
Configuration)
 Lower weight
 Lower maintenance costs through multifunctional composites, advanced metallic materials, structure health monitoring
Innovative systems (All Electrical
Aircraft)

Lower fuel consumption through
Bleed less architectures, Limited hydraulics,
Energy management
New aircraft configurations (NC)


Lower fuel consumption
NOx & CO
2 reduction through
Integration of Advanced turboprops, Open Rotors,
Advanced turbofan



Advanced aerodynamics (Low Noise
Configuration)
Improved aerodynamic efficiency
Drag reduction
Lower Airframe external noise through innovative solutions for wing and high lift devices and landing gears
Evaluation of new avionics architecture in MTM domain for


Fuel & noise reduction
Lower Maintenance costs through
Upgraded capabilities for MTM
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Clean Sky Info Day – Toulouse 1rst February 2011

Enabling Technology
Multifunctional Layer
A multifunctional single layer is a structure in which different materials are integrated - in order to assure several functions in a way that is impossible to identify them as separate layers
Lightning strike Protection
Noise Damping
WEIGHT REDUCTION
Flame Smoke and Toxicity resistance
Self-healing
Impact resistance
Structural property
A multifunctional multi-layer is a structure in which different materials are integrated, in order to absolve several functions
WEIGHT REDUCTION
Multifunctional Multilayer
Environment barrier
Self-healing
Carbon nanotube strengthened epoxy resin for increased compression and interlaminar shear strength in composites
(fuselage and wing)
Nanomaterials
Nanotubes
Sensors:
Fiber Optic Bragg Grating
(FOBG)
Conductive
Structural property
BRAGG
GRATING
FIBER OPTIC
TERMINATION
Flame resistant
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Damping
Clean Sky Info Day – Toulouse 1rst February 2011
Cobonded J-spar with embedded
FOBG sensors

Load Control
 Low Noise Configuration
Low noise aircraft configuration , consisting of the innovative solutions of the wing high lift devices and of the landing gear installation enabling the generation of less aerodynamic noise while performing their other basic functions at a high level of efficiency.
 Active Load Control concepts for Load alleviation and highly-efficient aerodynamics
 Passive flow control Technologies

HLD Low Noise Technologies

MLG & NLG Low Noise Technologies
 Laminar flow concept
 Load Control Technology
Wing advanced load control concepts aimed at improving aerodynamic efficiency and alleviate loads over the entire flight envelope will be addressed.
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Passive Flow Control
Advanced concepts, based on passive flow control devices, aimed at reducing skin friction on NLF wings at cruising flight conditions will be pursued.
Following technologies will be considered:
 micro-riblets in the turbulent flow region to reduce turbulent skin friction
 innovative surface treatments (micro-roughness) to delay laminar-turbulent flow transition
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Clean Sky Info Day – Toulouse 1rst February 2011

Airframe Low Noise
HLD Low Noise Technologies
 HLD passive low-noise treatments (porous materials, brush-like devices) to reduce noise emissions due to flap side edge vortices and slat upper TE vortex shedding
 HLD low-noise design (conventional and gapless solutions) based on multi-element wing camber aerodynamic optimisation and innovative kinematics to reduce noise induced by slots & tracks
 HLD advanced low-noise concepts (morphing structures, smart actuation)
 HLD highly-efficient, low-noise design through active (synthetic jets) flow control
MLG & NLG Low Noise Technologies

MLG and NLG low-noise configurations addressing mature and innovative concepts
(gear strut and wheel pack optimised shaping, vortex flow control, etc.)
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Clean Sky Info Day – Toulouse 1rst February 2011

Natural Laminar Flow
 A Natural Laminar Flow (NLF) Wing will be designed as baseline configuration for the further technology development integrating loads control, passive flow control and HLD low-noise concepts
 The NLF wing will be sized to be compliant with a next-generation, 130 pax
A/C at M=0.74 cruising flight condition
CFD mesh
TURBULENT
TRANSITION
Clean Sky Info Day – Toulouse 1rst February 2011
UPPER
LOWER 14

Main objectives of AEA is to demonstrate the feasibility of on-board systems new technologies and architectures enabling the application of the All-
Electric approach for a Regional airplane which aims:
 to completely delete the Pneumatic and Hydraulic power
 to enhance the Electrical power
 to apply new technologies which optimise the energy usage (Electrical and
Thermal Energy Management)
 thus contributing to Specific Fuel Consumption reduction (estimated around 2-3%, based on previous preliminary studies )
Main function/systems affected by AEA concept:

Electrical Power Generation & Distribution
 Power electronics
 Electrical engine starting
 Electrically powered cooling/heating and compression (ECS, Ice Protection, equipment cooling)

Electro-mechanical Actuation (EMA)
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Clean Sky Info Day – Toulouse 1rst February 2011

Alternating Current
Generator
AEA Electrical Energy Management In Flight Demo
XX kVA EXT XX kVA
SGO/GRA
AC BUS 1 AC BUS 2
Alternating Current
Generator
ATRU
A/C ACTUAL
LOADS
ELECTRICAL POWER CENTER
Electro-mechanical actuators (EMA)
Innovative Wing
Ice Protection
System (WIPS)
Other Simulated Electrical
Loads (TBD
)
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Electrical ECS (E-ECS)
Clean Sky Info Day – Toulouse 1rst February 2011
Simulated Counter Loads

 Integration and validation of new optimised missions and trajectories by using of a flight simulator
 The architecture and advanced functions of avionics utilising the technical solutions studied in other Clean Sky ITD’s for the advanced flight guidance and flight management functions
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Clean Sky Info Day – Toulouse 1rst February 2011

 Next generation of Regional A/C will be strongly affected by the “ Green
Requirements ”;
 New aircraft, systems architectures and advanced configurations might be necessary to accomplishing such requirements;
 Moreover integration of new technologies, propulsion in particular, will affect the overall A/C sizing;
 Careful assessment is required to evaluate eco benefits, and overall competitivity as well;
Clean Sky Info Day – Toulouse 1rst February 2011
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The GRA Clean Sky JTI Eco Assessment Process
REFERENCE AIRCRAFT (2 A/C)
Assessment of general architecture and performance of a turboprop (TP) and
turbofan (TF) reference configurations as expression of the current regional A/C technology (year 2000) supported by ATR (customers point of view) and by
SAFRAN and ROLLS ROYCE (powerplant point of view)
GREEN AIRCRAFT (2 A/C)
To define and study general architecture and performance of a Green TP and a TF or Open Rotor (OR) A/C s in accordance with a selected, optimised A/C configuration that matches other domains objectives (LNC, LW, All electric, MTM)
Outputs (GRA Aircraft Models) to Technology Evaluators (TE)
To provide technical details, requirements and specifications of the Reference
19 and Green A/C to Technology Evaluators.
Clean Sky Info Day – Toulouse 1rst February 2011

 Define architecture and performance of the following propulsion system
Turbofan Turboprop Open rotor
 Provide engine performance, noise, mass and dimension data to support green aircraft definition loops
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Clean Sky Info Day – Toulouse 1rst February 2011

 Advanced technologies will be assessed through a cost effective mix of ground and flight tests covering the technical solutions of integration of airframe, systems and engines at aircraft level.
 In this respect, full scale structural ground tests, large scale aerodynamic and aero-acoustics wind tunnel tests, and flight simulators have been considered .
 With reference to the generic regional aircraft type, the following Demonstrators will be produced:
Cockpit
Flight Demonstration Ground Demonstration
Clean Sky Info Day – Toulouse 1rst February 2011
Aerodynamic and
Aeroacoustic WT test
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Reference Top-Down Schedule based on high level assumptions
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Identification
JTI-CS-GRA
JTI-CS-GRA-01
JTI-CS-2011-1-GRA-01-035
JTI-CS-2011-1-GRA-01-036
JTI-CS-2011-1-GRA-01-037
JTI-CS-GRA-02
JTI-CS-2011-1-GRA-02-015
JTI-CS-2011-1-GRA-02-016
JTI-CS-GRA-03
JTI-CS-GRA-04
JTI-CS-GRA-05
JTI-CS-2011-1-GRA-05-006
ITD - AREA - TOPIC
Clean Sky - Green Regional Aircraft
Area-01 - Low weight configurations
Smart maintenance technologies
Development of methodology for selection and integration of sensors in fuselage stiffened panels. Testing
Advanced fuselage and wing structure based on innovative alumiunium lithium alloy - numerical trade off study
Area-02 - Low noise configurations
Advanced concepts for trailing edge morphing wings - Design and Manufacturing of test rig and test samples -
Novel nose wheel evolution for noise reduction
Area-03 - All electric aircraft
Area-04 - Mission and trajectory Management
Area-05 - New configurations
Regional Airlines Market Survey to upgrade Requirements for " Future Regional Aircraft”.
topics VALUE
6 1.230.000
770.000
220.000
100.000
450.000
460.000
210.000
250.000
100.000
100.000
MAX FUND
922.500
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Clean Sky Info Day – Toulouse 1rst February 2011

© 2011 by the CleanSky Leading Partners: Airbus, AgustaWestland, Alenia
Aeronautica, Dassault Aviation, EADS-CASA, Eurocopter, Fraunhofer
Institute, Liebherr Aerospace, Rolls-Royce, Saab AB, Safran Thales and the
European Commission.
Permission to copy, store electronically, or disseminate this presentation is hereby granted freely provided the source is recognized. No rights to modify the presentation are granted.
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