1. Sustainable and Green Engine

2. SAGE (Sustainable And Green Engines) AFHE 6 demonstrators with evolutionary and revolutionary technologies with challenging environmental objective Main Members and Affiliates: Rolls Royce plc, Rolls Royce Deutschland, SNECMA, MTU, Turbomeca, Volvo, AVIO, ITP, … Total budget > 420 M€ www.cleansky.eu

3. Contra-Rotating Open Rotor – Concept Challenges Power Turbine Propellers Pitch Change Control Propellers Pitch Change Control Protective Air Intake Protective Air Intake Rotating Nacelle Parts Rotating Nacelle Parts Noise & Vibration Noise & Vibration Operability & Power Management Operability & Power Management Certificability & Reliability Certificability & Reliability A/C Installation and wake interaction Counter-rotating propellers, noise optimised De-icing Communications via rotating systems Power gearbox www.cleansky.eu First ground test before end 2015

4. Technologies for lightweight, efficient intercase structures Composite fan case Composite fan blades Novel intake with optimised aero and acoustic liners Advanced integrated dressings Lightweight, high efficiency LPT Improved controls heat management Advanced sealing technologies Lightweight annulus fillers Intake optimised to composite fan system Large 3 shaft Engine – Concept Challenges www.cleansky.eu

5. August 2012: the first fan case engine build was achieved (advanced dressings) More on Skyline October 2012 http://www.cleansky.eu/content/document/skyline-issue-8-october-2012 Large 3 shaft Engine - Achievements

6. Advanced Geared Turbofan – Concept Challenges New High Efficient High Pressure Compressor Mid Turbine Frame with aggressive Interduct New High Speed Low Pressure Turbine New Lightweight Exhaust Frame Advanced Fan Drive Gear System Temps & Materials Weight & Mech. Integration Innovative Designs & Mfg Processes Efficiency & Performance Engine Control & Power System www.cleansky.eu

7. Advanced Turboshaft – Concept Challenges High efficiency HP turbine Innovative rear support architecture to reduce power losses High efficiency Compressor Low weight gearbox Low weight gearbox One stage low weight high efficiency BP turbine Low Emission Combustion Chamber Air intake acoustic attenuation Exhaust and plug acoustic attenuation www.cleansky.eu

8. Advanced Turboshaft – Achievements Turboshaft-engine demonstrator assembly started in August 2012. The first rotation runs in March 2013. www.cleansky.eu

9. Lean Burn – Concept Challenges www.cleansky.eu

10. SAGE: Next plans and demonstrations Large Three-shaft Engine Demonstrator Lightweight fan system Advanced external engine components and accessories Advanced ‘inter-case’ structures Lightweight and efficient Low-Pressure Turbine Contra-Rotating Open Rotor  Propeller Design  Pitch change mechanism  Gear Box  Rotating structure Advanced Geared Turbofan Demonstrator New highly efficient HP-Compressor Light weight high speed Low-Pressure Turbine Advanced light weight and efficient Turbine Structures Light weight and reliable Fan Drive Gear System New systems for a more electric engine Q4/2013 Q2/2013 Q4/2015

11. Thank you for your attention