It is the Enstroj Roman Susnik company that has made one of its special engines for electric propulsion of airplanes, specifically the model EMRAX 2, without brushes. It gives 75 kW of maximum power and 50 kW at 1,900 rpm of continuous.

-It can be cooled by air or liquid as indicated in the explanatory brochure.

"Enstroj's electric motor"