Product overview
The Scorpion SII-4020-420KV airplane motor combines a 40.0 mm (1.575 in) diameter stator with a 20.0 mm (0.787 in) stator thickness, 12 stator arms and 14 magnet poles. Its winding is 17 Turn Delta, using 17-Strand 0.25mm wire. Rated at 420 RPM / Volt, the motor has a resistance of 0.032 Ohms and draws 0.91 Amps without load at 10 v. Maximum continuous ratings are 70 Amps and 1500 Watts, with a maximum LiPo cell count of 6s.
The motor weighs 288 Grams (10.16 oz), with an outside diameter of 48.9 mm (1.925 in) and a body length of 46.15 mm (1.816 in). Its shaft measures 5.98 mm (0.235 in) in diameter, while overall shaft length is 78.40 mm (3.086 in). The adapter thread size is M8*1.0. Motor timing is 5deg and drive frequency is 8kHz. Including packaging, the weight is 672g.
