Going beyond Clean Sky

Clean Sky 2 will enable a natural continuation to the progress achieved in the first Clean Sky Programme launched under the EU’s 7th Framework Programme for Research and Technological Development (FP7), which will end in 2017. Projects in this first ground-breaking aeronautical JTI programme are delivering strong results – the potential for significant reductions in emissions, important noise reductions, and more efficient use of raw materials and finite resources.

Advancements in the first Clean Sky are mostly related to major components and large systems. The time is now ripe for moving towards their combination into complete aircraft demonstrators comprising innovative configurations. In addition to existing integrated technology demonstrators (ITDs), Clean Sky 2 will introduce further major demonstrations of several aircraft systems at the aircraft platform level. The technological improvements instilled through by Clean Sky 2 will underpin innovative advances in the next generations of aircraft in time to meet the next market window to replace the current fleet. 

Effectively fusing together the two phases of the Clean Sky JTI over a four-year transition period (2014-2017) will enable Europe to:

  • Accelerate the development of smart, environment-friendly and energy-efficient aircraft which operate worldwide, thereby meeting environmental and societal targets for more efficient, safer and greener air transport.
  • Achieve its strategic social priorities of sustainable growth, wealth creation and stable employment in fields of high technology.
  • Win global leadership for European aeronautics with a competitive supply chain, which includes academia, research bodies and SMEs.


By jointly pursuing this research and demonstrating new vehicle configurations in flight, the Programme will provide the proving grounds for new concepts that would otherwise be beyond the manageable risk of the private sector: it will give the necessary funding certainty and stability to develop and introduce game-changing innovations within timeframes that are widely accepted to be otherwise unachievable.

Based on the state of the art available in the market in 2014, up to a 30% reduction in fuel burn and related CO2 emissions; similar or greater reductions in NOx emissions and up to a 75% reduction in noise footprint will accrue from the focused and programmatic approach in Clean Sky 2 [these targets depending on the specific product/market application and entry into service timeframes].

These pace-setting gains will enable the European aviation sector to satisfy society's needs for sustainable, competitive mobility towards 2050. As such, Clean Sky 2 will be the key European instrument to overcome market failure and guarantee a sustainable advancement of aviation.


Clean Sky 2 Factsheet 


Cleansky development

Clean Sky 2: from break-through technology to full-scale demonstration