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Associated Projects Generation 1

DUCAT

Title : Basic research on duct acoustics and radiation

General Information:

Since fan noise will be a major contributor to the
exterior noise of Very High By-pass Ratio (VHBR) and
Ultra High By-pass Ratio (UHBR) turbofans, aerospace
industry is planning to introduce new nacelle noise
reduction technologies as adaptive and active liners
(actuators). Optimisation of these reduction means
requires a thorough understanding and accurate
description of the sound propagation in ducts.

Therefore, the main goal of DUCAT is to develop, extend
and validate computational methods for the propagation
and radiation of fan noise, including the effects of acoustic
liners. A number of relevant aspects of this topic are not covered by the computation models existing today. Duct acoustics design tools have to be reliable, accurate, fast and versatile. According to aerospace industrial needs, these models should ideally be able to handle: realistic nacelle geometries and non-uniform flow (in intake and by-pass duct), - non-uniform acoustic liners and duct wall mounted actuators, radiation into the far field, realistic frequencies and Sound Pressure Levels.

Within short terms, it is not expected that all aspects can be addressed with a single model. Therefore in DUCAT a small number of numerical models (Finite Element (FEM), Boundary Element (BEM), coupled FEM/BEM, a non-linear propagation model and a ray-acoustics model) will be developed covering the whole frequency range of interest for fan noise (kRmax = 100). Focal points for the various models will be: for the BEM-model: acoustic radiation and the inclusion of non-uniform (potential) flow, for the 3D-FEM-model: acoustic radiation in sheared exhaust flow and 3-D nacelle geometry, for the coupled 3-D FEM/BEM model: influence of boundary layer flow on the effectiveness of liners, for the non-linear model: effect of liners on propagation just upstream of the fan, for the ray-acoustics model: high dimensionless frequencies (kR > 40). These models are partially complementary and partially overlapping, which offers the possibility to find the best modelling for each aspect of duct acoustics.

The models will be validated by various experiments in European anechoic wind tunnels. A main validation experiment will be carried out using a model turbofan in the German Dutch Wind Tunnel (DNvV). The experimental data will constitute a database for the validation of the codes developed in this project and for future applications. Also data from the previously CECsponsored FANPAC-project will be used. After validation, the range of applications of the models and the restrictions for the use as industrial design tools for nacelle acoustic optimisation will be established. Furthermore, as a case study, a liner design exercise on the nacelle of a generic VHBR turbofan will be performed.

The final result of DUCAT will be an assessment of the applicability of the various computational models for duct acoustics problems and liner optimisation. With the improved and validated models, the engine and aircraft industry will have the possibility to develop adequate design tools for both passive and active liner optimisation. Further some spin-off to other industries is foreseen, since fluid machines as pumps, fans and internal combustion engines are major noise sources in modern society. The work in this project will clearly make progress beyond the state of the art by developing and extending computational models for duct acoustics and validating those by a small number of precise experiments.

Start Date : 1998-01-01

End Date : 2000-12-31

Duration : 36 months

Project Status : Completed

Programme Type : 4th FWP (Fourth Framework Programme)

Prime Contractor :

Organisation : Nationaal Lucht- en Ruimtevaart Laboratorium (NLR)

Department : Fluid Dynamics Division Aeroacoustics Department

Address : 31 Voorsterweg PO Box 153

Postcode : 8316 PR

City : Marknesse

Region : OOST-NEDERLAND OVERIJSSEL Noord-Overijssel

Country : NETHERLANDS

Contact Person : Edward RADEMAKER

Email : radema@nlr.nl

Project Partners :

Aerospatiale Matra Airbus (FR)

Rolls Royce (GB)

BMW Rolls Royce (DE)

TURBOMECA (FR)

ONERA (FR)

KTH (SE)

ISVR Southampton (GB)

University of Galway (IE)

Université de Technologie de Compiègne (FR)

Technical University of Denmark (DK)

RESOUND

Title : Reduction of Engine Source noise through Understanding
and Novel Design

General Information :

The principal aircraft and engine manufacturers in Europe are
facing increasing pressure to reduce aircraft noise levels. This
arises both from the community expectations of improved
quality of life and from the need to compensate for the expected
growth in air traffic. Consistent with an EC policy statement: "a
co-ordinated strategic approach at European level is essential
and major efforts need to be devoted to techniques for further
reduction of exterior aircraft noise to overcome today's
technology barrier. Hence the objective for R&D is to enable a
breakthrough in noise control technology".

The objective of RESOUND is to acquire the technology necessary to support the design of derivative and new aero-engines with noise levels that are 4 dB quieter than those of aircraft currently entering service. This will provide the foundation for the achievement of a mid-term (8 years) objective of reducing aircraft noise levels by at least 6 dB, and allow European industry to compete on an equal footing with the US.

RESOUND addresses the challenge of reducing the noise at source, in particular turbomachinery noise, through (1) engine component aeroacoustic design and (2) through novel noise controlling devices that can be integrated within the engine structure. Innovative technologies to be evaluated, with the aid of theoretical techniques and experiments at model and full scale, include: fan noise reduction through reduced tip speed and pressure ratio optimisation noise reduction with fan and stator axial sweep and circumferential lean fan noise reduction with variable by-pass nozzle and passive fan tip treatments combustion noise reduction through improved and validated generation and propagation model assessment of potential noise hazards of low NOx combustors LP turbine noise reduction through exit guide vane design turbomachinery noise reduction through active stator design turbomachinery noise reduction by means of auxiliary aeroacoustic control devices.
Based on the technology acquired, RESOUND will deliver a full assessment of the community noise benefits of controlling engine noise at source, through design and with novel active/passive devices.

The reduction of aircraft noise through improved nacelle technology and airframe design is being addressed by complementary proposals (RANNTAC and RAIN respectively), supported by one Type 2 project (DUCAT), all of which will be co-ordinated through the X-NOISE thematic network that has been formed as a result of the Environmentally Friendly Aircraft study (TEFA). Such a combined effort is necessary to meet the challenge of the US industry, which is backed by a fully funded program (200 MUSD over 7 years).

Start Date : 1998-01-01

End Date : 2000-12-31

Duration : 36 months

Project Status : Completed

Programme Type : 4th FWP (Fourth Framework Programme)

Prime Contractor :

Organisation : Rolls Royce plc

Department : Aerospace Group

Address : Moor Lane PO Box 31

Postcode : DE24 8BJ

City : Derby

Region : EAST MIDLANDS DERBYSHIRE, NOTTINGHAMSHIRE

Country : UNITED KINGDOM

Contact Person : Andrew KEMPTON

Email : andrew.j.kempton@rolls-royce.com

Project Partners :

Aerospatiale Matra Airbus (FR)

SNECMA (FR)

MTU (DE)

BMW Rolls Royce (DE)

Dassault (FR)

Dornier (DE)

Daimler Chrysler (DE)

NLR (NL)

DERA (GB)

ONERA (FR)

DLR (DE)

ISVR Southampton (GB)

University of Galway (IE)

University of Cambridge (GB)

Ecole Centrale de Lyon (FR)

Bertin (FR)

Metravib (FR)

RANNTAC

Title : Reduction of aircraft noise by nacelle treatment and
active control

General Information : Objectives and content

Community reaction to aircraft noise recognised as one of
the most important constraints limiting future growth of air
transport industry unless all future aircraft noise levels
decrease in such a manner to offset the effect of air traffic
growth on noise exposure. The current limitations of the
state of the art aircraft noise reduction technology and the
benefits that the US industry is starting to get in from the
tremendous R & D effort in subsonic transport aircraft noise
reduction coordinated by FAA and NASA (launched in 1994),
urge the European industry to find now the appropriate answer.

The RANNTAC programme, together with the RESOUND programme on engine noise source reduction technology and the RAIN programme on the reduction of airframe and installation noise are the three main and complementary pieces of the proposed R & D effort co-ordinated at European level by the X-NOISE thematic network on external noise.This effort is needed to meet the requirements expressed in the EU consultation paper of November 96 for reduction in aircraft noise levels and accept the US implicitchallenge a complying with much more stringent noise rules in the early 2000's.

The objective of the combined programme is to deliver within 8 year, aircraft environmental noise abatement of 6 decibels both at departure from airports and at arrival relative to current technology demonstrated by aeroplane industry. The objective of RANNTAC is to acquire the technology necessary to support the development and manufacturing of turbofan engine nacelles featuring noise reduction devices and designs enabling to achieve up to 4 dB attenuation on engine internal noise sources in addition to that achieved by currently produced acoustic liners. Half this noise reduction will be demonstrated at the end of the programme while the means to achieve the reminder will be identified and defined for further large-scale demonstration.

The practical results of the proposed research is to secure the design capabilities of developing in future transport aircraft nacelles, a large range of novel sound absorbing liners, air intake shapes allowing to control the fan noise radiation and in duct active noise control systems. The work programme will provide theoretical and experimental acoustic evaluation of all proposed systems and concepts in the context of real nacelle duct environment and assessment of the expected benefits on future aircraft noise together with the chances of industrial application and foreseen impact on aircraft economics.

The programme's structure features three tasks: Specifications, assessments, Exploitation and Management, Development of novel nacelle treatment concepts, Development of active Noise Control technology in nacelles. The work will be essentially carried out in parallel in tasks 2 an 3 each of them developing and providing in the end a panel of noise reduction solutions of different types, every type being evaluated on appropriate common test facilities.

Start Date : 1998-01-01

End Date: 2000-12-31

Duration: 36 months

Project Status: Completed

Programme Type: 4th FWP (Fourth Framework Programme)

Prime Contractor :

Organisation : Aerospatiale Matra Airbus

Department : Etude Générales - Performances - Acoustique

Address : 316 Route de Bayonne

Postcode : 31060

City : Toulouse

Region : SUD-OUEST MIDI-PYRÉNÉES Haute-Garonne

Country : FRANCE

Contact Person : Pierre LEMPEREUR

Email : pierre.lempereur@airbus.com

Project partners :

SNECMA (FR)

Rolls Royce (GB)

MTU (DE)

BMW Rolls Royce (DE)

Hispano Suiza Aerostructures (FR)

Dornier (DE)

Daimler Chrysler (DE)

NLR (NL)

DLR (DE)

ISVR Southampton (GB)

University of Galway (IE)

University of Salford (GB)

Ecole Centrale de Lyon (FR)

Bertin (FR)

Metravib (FR)

Cambridge Concept (GB)

Ferroperm (DK)

CTTM (FR)

EPF Lausanne (CH)

RAIN

Title : Reduction of airframe and installation noise

General Information : Objectives and content

The airframe itself can strongly influence the noise radiation
from aircraft. Not only can the airframe through diffraction,
refraction and reflection modify the noise radiated by the
engines but it also acts as a strong source of additional
noise radiation either directly from its components (for
example the undercarriage and wing with high lift devices
deployed) or indirectly by modifying or coupling with certain
engine flow features. To date such sources of noise whilst
important have had limited impact on the overall
optimisation of the aircraft. However, the trend towards very
high by-pass ratio engines with their differing source
breakdown coupled with the trend to aircraft of larger size
offers the prospect that future new aircraft designs may well
be limited in realising their full operational efficiency and
hence competitiveness by such acoustic effects.

Therefore, there is a clear industrial need to develop an improved design capability which enables the effects of the airframe on the overall aircraft noise radiation to be addressed in the early stages of design. Such a capability is essential if airframe noise and installation effects are to feature in the aircraft optimisation process.

On approach the noise radiated from the airframe itself will be comparable with that of the engines and will limit the potential benefit of future engine noise reductions. The noise contribution from each of the components of the airframe need to be accurately predicted. As the nature and magnitude of airframe installation affects the noise radiation from the various engine sources in differing ways, the need is to accurately predict the installation effects for the main or dominant components - jet, fan turbine and combustion.

The current proposal aims to make a major contribution towards establishing such a competitive design capability. Advanced analysis tools will be developed based on sound theoretical approach at component level. New improved model scale experimental noise databases will be established and used in the development and calibration of these new analysis tools. Full-scale flight test data will be used to establish scale effects and for confirmation of the overall prediction capability. In parallel to the development of the analysis tools practical approaches to noise reduction will be identified and evaluated to provide confidence that such analysis tools are capable of implementation within design optimisation studies.

The project is expected to realise at component level reductions in noise of the order of 5 to 10 dB. Full impact will be realised when the new airframe related technology developed here is integrated with that of the engine on an overall aircraft noise level basis when this is expected to result to a net improvement of less than 5 EPNL dependent on the engine noise contribution. This proposal is submitted within the framework Technical Area 3A.4 (environmental technologies) of the Brite-Euram Programme. As such it is one of the X - projects which form a cluster to address community noise reduction. It is believed that only a co-ordinated initiative at the European level, building on EC and National programs, expanding the scope of research topics to counter the US effort and providing the "demonstrator" capability that National programs cannot afford alone, will deliver the expected environmental and competitive benefit. The cost and scale of the project is further justified because of the number of tests required (wind tunnel occupation and the provision of a flight test aircraft costs are very significant) to obtain databases, so that the improved prediction tools of airframe noise and installation effects on engine (fan, jet and core) noise can be validated and design rules formulated. The noise reduction design will also be conducted and assessed (both in full scale and scaled model) in the wind tunnels. Together with the other noise cluster programs (RESOUND, RANNTAC) noise reduction achievement, the total noise reduction is expected to be 6 dB. The proposed work is very important as the airframe and installation noise is already affecting the existing aircraft, and need to be fully controlled in the design development of a new generation of aircraft (airframe noise may be a limiting factor in the development of the future large European aircraft) if community noise requirements are to be fully satisfied.

Start Date: 1998-01-01

End Date: 2000-12-31

Duration: 36 months

Project Status: Completed

Programme Type: 4th FWP (Fourth Framework Programme)

Prime Contractor :

Organisation : British Aerospace Airbus Ltd

Department : British Aerospace Airbus

Address : Filton House Filton PO Box 77

Postcode : BS99 7AR

City : Bristol

Region: SOUTH WEST (UK) AVON, GLOUCESTERSHIRE, WILTSHIRE

Country : UNITED KINGDOM

Contact Person : Steve CHOW

Email : steve.chow@airbus.com

Project Partners :

Aerospatiale Matra Airbus (FR)

Daimler Chrysler Airbus (DE)

Dassault (FR)

Alenia (IT)

Dornier (DE)

Daimler Chrysler (DE)

Messier Dowty (GB)

Rolls Royce (GB)

SNECMA (FR)

MTU (DE)

NLR (NL)

DERA (GB)

ONERA (FR)

DLR (DE)

ISVR Southampton (GB)

University of Galway (IE)

SOURDINE

Title : Study of Optimisation Procedures for Decreasing the Impact of Noise around airport

General information :

A critical side effect of the dominance of jet aircraft in Europe's
increasingly congested skies is intrusive, damaging noise levels at
airports and surrounding communities. Several projects funded
by Directorate General XII are investigating the technology
breakthroughs required to reduce aircraft noise emissions, while
the DGVII project SOURDINE, the French word f or "mute", is
addressing the promising new area of possible changes in approach
and take-off procedures.

The 13-month SOURDINE project is the first stage of a long-term programme aimed at defining new approach and take-off procedures for all European airports and at developing supporting tools. It will also define the ATM (air traffic management) activities to be carried out in the area of noise reduction under the 5th Framework Programme.

SOURDINE will study and propose alternatives to reduce noise levels around airports by :

i) laying out general rules for most existing aircraft to update current approach and take off procedures;

ii) identifying short-term improvements in such measures as reduced flaps, delayed landing gear lowering and a higher descent speed;

iii) investigating and applying new procedures at selected airports - Schiphol, Madrid and Naples - to assess their feasibility. They will be tested in a simulated environment to measure their contribution to reducing noise without decreasing airport capacity or flight safety. In the next phase, candidate arrival and departure procedures will be tested in a real environment using defined measurement tools and methods;

iv) specifying and developing automation tools to support air traffic controllers and pilots in the application of new procedures. Operational global validation with the end users will take place to verify the impact and feasibility of these procedures.

The objective of this work is not only to reduce the overall noise encountered by people living near an airport, but also to ensure that airport capacity is not eroded. This ambitious project began on December 1, 1998 under the 4th Framework Programme and involves 11 partners in five member states. The development of the simulation tool and its calibration and the operational validation and the development of the automation tools for end users will be carried out in the 5th Framework Programme.

Duration: 12 months

Project Status: Completed

Programme Type: 4th FWP (Fourth Framework Programme)

Prime Contractor :

Organisation : ISR

Adress : 3, rue Ampère F-91-349 Massy Cedex France

Contact Person : Ruud DEN BOER (NLR)

Email : rgboer@nlr.nl

Project Partners :

AENA (ES)

INECO (ES)

NLR (NL)

RLD (NL)

SICTA (IT)

Air Support (IT)

Aerospatiale Matra Airbus (FR)

Air France (FR)

DERA (GB)

SerDB (FR)

SOURDINE II

Title : Study of Optimisation procedURes for Decreasing the Impact of NoisE around airports II

General information :

The objectives of Sourdine II are:- development and validation of new advanced innovative environmental friendly approach and departure procedures that have a positive impact on safety, capacity, environment and financial aspects.- development of an implementation plan to provide guidance for the migration from the current operational environment to the new procedures.- development of enabling technology to achieve the successful introduction of the selected departure and approach procedures, such as ATC controller tools, automated aircraft-ATC interaction tools and cockpit monitoring tools (e.g. safety nets)- development of a policy tool, enabling the policy makers to visualise and assess, for each new procedures, the relationship between safety, capacity, environment (noise and emissions) and the financial aspects.

Start Date: 2001-11-13

End Date: 2004-11-12

Duration: 36 months

Project Status: Execution

Programme Type: 5th FWP (Fifth Framework Programme)

Prime Contractor :

Organisation : Nationaal Lucht - En Ruimtevaart Laboratorium

Adress : Anthony Fokkerweg 2 90502 1006BM

Postcode : 1059 CM

City : Amsterdam

Région : WEST-NEDERLAND NOORD-HOLLAND Groot-Amsterdam

Country : NETHERLANDS

Contact Person : Ruud DEN BOER (NLR)

Email : rgboer@nlr.nl

Project Partners :

Ingenieria de Sistemas para la Defensa de España, S.A. (ES)

Entidad Publica Empresarial Aeropuertos Españoles y Navegacion y Aera (ES)

Ingenieria y Economia del Transporte S.A. (IT)

Sistemi Innovativi per il Controllo del Traffico Aereo (IT)

EADS Airbus S.A. (FR)

European Organisation for the Safety or Air Navigation (FR)

SOURDINE II Website

TurboNoiseCFD

Title : Turbomachinery noise source CFD models for low noise aircraft engine designs

General Information :

The European aircraft engine manufacturing industry is facing increasing pressure to reduce engine noise levels. The community expectations of improved quality of life through reduced noise levels and the current growth in air traffic are major socio-economic problems. A long-term solution is proposed here to create anew method for designing low noise turbo-machinery components through the exploitation of existing Computational Fluid Dynamics (CFD) software. This project would enable CFD software
to be used for the prediction of noise, if the technical challenges such as dispersion and excessive memory and computational times can be overcome. If successful, the results of this project could be commercially exploited in the same way as the CFD codes are for turbo-machinery aerodynamics. The aim of this project is to contribute to the achievement of the Work Programme RTD objective of 10 dB reduction in 10 years in aircraft external perceived noise.

Start Date : 2000-02-01

End Date : 2003-02-01

Duration : 36 months

Project Status : Completed

Programme Type : 5th FWP (Fifth Framework Programme)

Prime Contractor :

Organisation : ROLLS ROYCE PLC

Department : Moor lane INSTALLATIONS ENGINEERING

Address : DE24 8BJ

DERBY, EAST MIDLANDS

Derbyshire

UNITED KINGDOM

Contact Person : Andrew KEMPTON

Email: andrew.j.kempton@rolls-royce.com

Project Partners :

University of Cambridge (UK)

University of Southampton (UK)

Ecole Centrale de Lyon (FR)

FFA - The Aeronautical Research Institute of Sweden (SE)

Turbomeca SA (FR)

Stichting Nationaal Lucht - En Ruimtevaart Laboratorium (NL)

German Aerospace Centre (DE)

Qinetiq Limited (UK)

Snecma Moteurs SA (FR)

Eindhoven University of Technology (NL)

Office National d'Etudes et de Recherches Aérospatiales (FR)

MTU Aéro Engines GMBH (DE)

Technische Universitaet Berlin (DE)

Université Pierre et Marie-Curie VI (FR)

Industria de Turbo Propulsores SA (ES)

JEAN

Title : Jet exhaust aerodynamics and noise

General information :

The JEAN proposal will address the prediction of noise by jet
flows including the effects of mixing enhancement and co-axial
configurations CFD techniques will be applied and validated to
predict the turbulence characteristics of jets. These will be
coupled to noise source generation and propagation models to
estimate the near and far field noise. The results will be critically
evaluated against data obtained from a series of carefully
designed experiments. The validated noise prediction
procedures will be applied to mixing enhancement and to
co-axial jets and the results compared with existing high quality
data for these configurations. The work will recommend the use of a particular suite of techniques, which will have been validated for specific applications. These will then provide the basis for the development valuation tools for new concepts in low noise design of jet engines.

Start Date : 2001-02-01

End Date : 2004-01-31

Duration : 36 months

Project Status: Execution

Programme Type : 5th FWP (Fifth Framework Programme)

Prime Contractor :

Organisation : Trinity College Dublin

Department : Mechanical and Manufacturing Engineering

Adress : Parsons Building, Trinity College

Postcode : 2

City : DUBLIN

Région : Dublin

Country : IRELAND

Contact Person : John FITZPATRICK

E-mail : john.fitzpatrick@tcd.ie

Project Partners :

University of Southampton (UK)

Ecole Centrale de Lyon Université de Poitiers (FR)

Snecma Moteurs SA (FR)

Rolls-Royce Deuschland LTD&CO KG (DE)

The National Research & Development Institute for Turboengines Comoti R.A. (RO)

Qinetiq Limited (UK)

Centre National de la Recherche Scientifique (FR)

Office National d'Etudes et de Recherches Aérospatiales (FR)

Volvo Aero Corporation AB (SE)

Dassault Aviation S.A. (FR)

Chalmers Univertisty of Technology (SE)

Instituto Superior Tecnico (PT)

SILENCE(R)

Title : Significantly lower community exposure to aircraft noise

General information :

SILENCE(R) addresses the issue of aircraft noise, a major cause
of concern around European airports, through three major
objectives :

- Large scale validation of noise reduction technologies
whose development was initiated by EU and National
projects in 1998;

- Assessment of the applicability of these technologies
to current and future European products with minimum
cost, weight or performance penalty;

- Determination of the associated achievable noise reduction,
Novel concepts to be validated include low-noise fans,
combustors and LP turbines, scared intakes, novel intake, bypass and hot-stream liners, nozzle jet noise
suppressors, active control techniques and airframe noise reduction technologies.

Unless this technology can be developed and validated to reduce aircraft noise, traffic is likely to be limited by noise restrictions, affecting indirectly general economic growth. Expected results are consistent with the EC work program goal of 5dB reduction. The total partnership involves over 50 organisations from 14 EU countries, one candidate country and one associated state. Aircraft, aero-engine, nacelle manufacturers, as end-users, are the main partners in SILENCE(R).

Start Date : 2001-04-01

End Date : 2005-03-31

Duration : 48 months

Project Status : Execution

Programme Type : 5th FWP (Fifth Framework Programme)

Prime Contractor :

Organisation : SNECMA MOTEURS SA

Department : Research Directorate

Address : Centre de Villaroche

Postcode : 77550

City : MOISSY CRAMAYEL

Region : ÎLE DE FRANCE Seine-et-Marne

Country : FRANCE

Contact Persons : Co-ordinator : Eugene KORS

E-mail : eugene.kors@snecma.fr

Communication Mqr : Dominique COLLIN

E-mail : dominique.collin@snecma.fr

Project Partners :

University of Southampton (UK)

Centre National de la Recherche Scientifique (FR)

Instituto Superior Tecnico (PT)

Centre National de la Recherche Scientifique (FR)

Trinity College Dublin (IE)

Bruel & Kjaer Sound & Vibration Measurement A/S (DK)

Mertravib Recherche Developpement Service SA (FR)

German Aerospace Centre (DE)

Institut National des Sciences Appliquées de Lyon (FR)

Integreted Aerospace Sciences Corporation O.E. (HE)

Sonaca SA (BE)

Swiss Federal Institute of Technology Lausanne (CH)

Industria de Turbo Propulsares SA (ES)

ATECA - Application des Technologies Avancées S.A (FR)

A4 Ingenieros Consultores SL (ES)

Fokker Aerostructures BV (NL)

Messier-Dowty SA (FR)

Technical Research Centre of Finland (FN)

Alenia Aerospazio - Un'Azienda Finmeccanica SpA (IT)

Centre de Transfert de Technologie du Mans - Association pour les Transferts de Technologies du Mans (FR)

Turbomeca SA (FR)

Plansee AG (AT)

Anotec Consulting, S.L. (ES)

Hurel-Hispano le Havre (FR)

Qinetiq Limited (UK)

Aircelle SAS (FR)

Dassault Aviation S.A. (FR)

Airbus France SAS (FR)

Dornier GMBH (DE)

Rolls Royce PLC (UK)

Walcher Elektronik GMBH (DE)

Airbus Deuschland GMBH (DE)

The National Research & Developement Institute for Turboengines Comoti R.A. (RO)

Stichting Nationaal Lucht - En Ruimtevaaart Laboratorium (NL)

Sener Ingenieria y Sistemas SA (ES)

Short Brothers PLC (UK)

Airbus UK Limited (UK)

Rolls-Royce Deutschland LTD&CO KG (DE)

Office National d'Etudes et de Recherches Aérospatiales (FR)

EADS Deutschland GMBH (DE)

Saab AB (SE)

Fundacion Inasmet - Asociacion de Investigation Metalurgica del Pais Vasco (ES)

Aermacchi SPA (IT)

Fundacion Centro de Tecnologias Aeronauticas (ES)

Subcontratacion de Proyectos Aeronauticos S.A. (ES)

Siegel S.A. (ES)

Inbis Technology LTD (UK)

MTU Aero Engines GMBH (DE)

Vibratec S.A. (FR)