Clean Sky Joint Undertaking

An engine choice for a 737 successor may be years away, but Boeing is showing signs of preferring ducted engines to the outwardly more efficient open fan.

Demonstrators built under Clean Sky 2, the project’s predecessor, were exhibited at the annual forum as a source of motivation.

A significant improvement in energy efficiency for a novel de-icing system has been demonstrated under the EU’s Clean Sky 2 public-private partnership.