AOS Supernova 4220 515Kv is a powerful motor suitable for large VTOL aircraft, heavy-lift, and long-range drones with 13" propellers and a 6-8S LiPo battery. The motor belongs to the Supernova series, designed by Chris Rosser based on his own FPV motor performance simulation model and manufactured in cooperation with RCinPower.
The stator has a diameter of 42mm and a height of 20mm, with a 12N14P configuration and a winding internal resistance of 22mΩ. The motor achieves its highest efficiency, over 86%, in the 8-20A range, which corresponds to approximately half throttle with 13" propellers on 8S. At quarter throttle, when thrust is around 900 grams, it achieves an efficiency of 7.7-8.8 g/W, making it suitable for aircraft focused on long flight times. The propeller mounts onto a 6mm hollow shaft or with four M3 screws on a 12x12mm pattern on the bell. The motor mounts to the frame with four screws through M4 30x30mm mounting holes. It weighs 330 grams (with 3cm cables). We recommend pairing it with ESCs rated for at least 80A.