Clean Sky 2: The Roadmap

During ILA Berlin on September 12th, the Clean Sky Joint Undertaking and the European Commission jointly held an Industry Consultation about the extension of Clean Sky under Horizon 2020. Gathering around 120 representatives and stakeholders from across the aerospace industry, it provided an excellent forum for discussion and attendees had the opportunity to get a better insight about the progress and current proposal on Clean Sky 2.
This consultation followed the review performed by a Panel of Experts, who were tasked on behalf of the European Commission to examine the Preliminary Programme Outline submitted to the Commission by the industrial parties currently actively building a detailed proposal for a Clean Sky 2.

Alongside the Stakeholder Event and the Panel review, the third core ingredient necessary in the evaluation of the case for a renewed Aeronautics JTI was a Public Consultation, launched early July and closed on October 4th. This results of this web-based open consultation, in the form of a questionnaire, are very encouraging.

Of the respondents, 95% considered it appropriate to set up a Public-Private Partnership (PPP) in Aeronautics under Horizon 2020. Most of the participants agree (39%) or strongly agree (50%) with the fact that the PPP in aeronautical research should focus on large-scale demonstration of promising new technologies. In addition, the majority of the respondents (41% favourable and 33% very favourable) are in support of the use of a dedicated vehicle or Joint Undertaking with a lean and light administrative approach to executing the programme.

The overall conclusion of the public consultation is therefore resoundingly positive with respect to the proposed approach of a new aeronautical JTI programme i.e. Clean Sky 2, under the management of an efficient and purpose-driven entity such as the JU.

A great result which should be seen as solid encouragement to continue with the detailed elaboration of the Clean Sky 2 proposal!
SAGE 3 on the course to deliver its first engine demonstration
The Sustainable and Green Engine (SAGE) ITD of Clean Sky is dedicated to demonstrating engine technologies for a wide range of future civil aerospace applications.

Led by Rolls-Royce, project SAGE3 is dedicated to demonstrating technologies for large 3-shaft turbofan engines, with a focus on low pressure systems, engine structures and engine externals. SAGE Associates ITP and GKN Aerospace/Volvo Aero are working on low pressure turbine and compressor structures, while Rolls-Royce concentrates on the fan system and externals.

Mark Pacey the Chief Project Engineer for ALPS in Rolls-Royce said about his work in Clean Sky programme: The overall outcome has been to diversify participation and the range of technologies demonstrated by SAGE3, increasing the overall benefit of the project. From being sceptics, we have become enthusiasts!

A first test has already been carried out to demonstrate Advanced Dressings, a modular concept for dressing engines that delivers weight reduction, reliability improvements, dramatic reductions in parts count and allows dressings to be prepared off line before reaching engine build. The fancase has been built and will soon be married to the engine.
Turbomeca (Safran group) is the leader of SAGE 5 that shall assess, design, build and test a full-scale high efficiency turbine engine technologies demonstrator. A helicopter power plant will be the first engine targeted but any other application that would use a 1000kW high efficiency core engine would use SAGE5 technologies.

SAGE 5 will provide Turbomeca with the necessary technologies for the development of a new engine family equipping helicopter classes with a take-off weight from 3 tons (single-engine) to 6 tons (twin-engine). The project aim is to demonstrate TRL6 for the sub-systems studied and designed through appropriate testing conditions representative of potential future engine applications. The representative environment for many technologies will be provided by components and engine test. The technologies to be demonstrated will deliver improved specific fuel consumption, noise and emissions in line with the goals of the Clean Sky programme.

The modules rig test activities for high efficiency compressor, combustor chamber and turbines have started this year. The first prototypes of control and electronics devices have already been delivered to Turbomeca and are being tested on a partial rig. We have now obtained significant results from module tests; these results allow us to go forward with assembling the full engine. We plan a first run before the end of 2012.
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