Home Electric Aircraft Overair’s Butterfly, Sleek Passenger eVTOL Might Be the World’s Quietest Electric Aircraft Overair’s Butterfly, Sleek Passenger eVTOL Might Be the World’s Quietest Electric Aircraft 23 Aug 2021 | Electric Aircraft This Sleek Passenger eVTOL Might Be the World’s Quietest Electric Aircraft Overair’s Butterfly has four large propulsors that make it energy efficient—and much quieter than its competitors.
