The Yuneec Power Drive 20 is an integrated electric propulsion system developed by Yuneec International, a manufacturer specializing in electric aviation and unmanned aerial vehicle (UAV) technology. The system was designed for use in the light aviation sector, specifically for ultralight and light-sport aircraft.
The "20" designation in the model name refers to the system's power output of 20 kilowatts (kW), which is approximately equivalent to 27 horsepower. The Power Drive 20 typically consists of a high-torque brushless electric motor, an electronic speed controller (ESC), and associated power management hardware.
The propulsion system is most notably associated with the Yuneec E-Spyder, a single-seat electric ultralight aircraft. In 2013, the E-Spyder, equipped with the Power Drive 20, received the world's first type certification for an electric aircraft from the German ultralight association (DULV), representing a significant milestone in the commercialization of electric flight.
The design of the Power Drive 20 focuses on achieving a high power-to-weight ratio and operational efficiency to accommodate the energy density limitations of contemporary battery technology. As an electric motor, it produces significantly lower noise levels compared to traditional internal combustion engines and eliminates direct exhaust emissions during operation. The system was part of a broader series of electric power plants developed by Yuneec, which included units with varying outputs such as the Power Drive 10, 40, and 60.