Slotted Laminar Flow Airfoil Offers Path To Ultraefficient Airliners

low-drag natural laminar flow
Tests showed the slot enabled low-drag natural laminar flow to be maintained over most of the airfoil.
Credit: NASA
Natural laminar flow is a known means of reducing aircraft drag and energy consumption, but its practical implementation is difficult on commercial airliners that cruise at transonic speeds and account for the bulk of aviation’s carbon emissions. A team led by the University of Tennessee (UT) at...
Guy Norris

Guy is a Senior Editor for Aviation Week, covering technology and propulsion. He is based in Colorado Springs.

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