An electric aircraft engine designed to reduce operational noise to a whisper is now powering piloted aircraft.
Whisper Aero on Wednesday revealed that its “ultra-quiet” eQ250 electric ducted fan propulsion system is being put to the test in Tennessee under an FAA special airworthiness certification. The company said it installed a pair of eQ250s on a modified Aériane Swift 3 glider, with which test pilot Zac Majors conducted three flights spanning 130 minutes, or about 43 minutes on average.
