Boeing has launched flights with its ecoDemonstrator 757 to evaluate new technologies aimed at improving efficiency, noise and carbon emissions, following on from its ecoDemonstrator 737 and 787 projects.
On the 757’s left wing, Boeing is testing technologies to reduce environmental effects on natural laminar flow, including a Krueger shield to protect the leading edge from insects.
On the right wing, NASA is to test “bug-phobic” coatings to reduce the residue left by insect strikes.
Meanwhile, active flow control could improve the rudder’s efficiency by up to 20 per cent, according to Boeing, and may allow for a smaller vertical tail design in the future.
On the vertical tail, NASA and Boeing are testing active flow control to improve airflow over the rudder and maximise aerodynamics. Boeing is also collaborating with the TUI Group on the ecoDemonstrator 757 tests.