[1] The Power Drive 20 is part of a family of scalable electric motor designs produced by Yuneec.
[1] The family of engines is designed to use the company's own power controller, Lithium polymer battery pack and charger, as an integrated package of components.
[1][2] The Power Drive 20 is a brushless 67 volt design producing 20 kW (27 hp), with an outrunner.
The low working rpm of the engine means that it can turn a propeller at efficient speeds without the need for a reduction drive.
[1] Data from World Directory of Leisure Aviation 2011-12 and Yuneec[1][3] Related lists