The Evektor EPOS ("Electric powered small aircraft"),[1] also called the SportStar EPOS, is a Czech electric ultralight and light-sport aircraft under development by Evektor-Aerotechnik of Kunovice.
[1][2] The EPOS is based upon the Evektor SportStar RTC, a Fédération Aéronautique Internationale microlight and CS-LSA light-sport aircraft.
The initial electric motor employed was the Rotex RE X907 of 67 hp (50 kW) at 330 volts.
In 2014 the design was upgraded with a Rotex RE BB 90-5, a brushless, DC, liquid-cooled powerplant that produces 100 hp (75 kW) at 3,000 rpm and weighs 20 kg (44 lb).
Power is supplied by 4 battery containers each with 45 Kokam Company, Ltd. SLPB100216216H cells of 40Ah capacity[3] connected in series, producing 378 volts.