Boeing ecoDemonstrator 757 Flight Tests Focus on Aerodynamic Efficiency – Collaboration with TUI Group, NASA to reduce fuel use, carbon emissions – New technologies include active flow control, bug-phobic wing coatings – SEATTLE, March 18, 2015 – Boeing has begun several months of flights with its ecoDemonstrator 757 to evaluate new technologies to improve commercial aviation's efficiency, reduce noise and carbon emissions. Boeing is collaborating with TUI Group and the National Aeronautics and Space Administration (NASA) on ecoDemonstrator 757 tests. – Shown here, the ecoDemonstrator 757 flies over the Olympic Peninsula in Washington State. (PRNewsFoto/Boeing)