An electric auxiliary power unit compact enough to be installed in light business jets and turboprops—yet sufficiently powerful to start engines and provide extended ground power—is in development by Honeywell for entry into service in 2021. The micro power unit (mPU) is aimed at aircraft “like the Pilatus PC-12, [Beechcraft] King Air or smaller Cessna Citations or Embraer Phenoms,” says Robert Buddecke, vice president and general manager of Honeywell Power Systems. ...


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