Technology

Propeller advance paves way for quiet, efficient electric aviation

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Electrification is seen as having an important role to play in the fossil-free aviation of tomorrow. But electric aviation is battling a dilemma: the more energy-efficient an electric aircraft is, the noisier it gets. Now, researchers at Chalmers University of Technology, Sweden, have developed a propeller design optimization method that paves the way for quiet, efficient electric aviation.