Product overview
The Scorpion SII-5535-190KV electric motor belongs to the second-generation SII-55 series and is intended for 50-70cc airframes or aerobatic airplanes with an 85-95-inch wingspan running on 12s batteries. Its motor constant is 190 RPM / Volt, with resistance of 0.022 Ohms and no-load current of 1.24 Amps at 10V. Maximum continuous ratings are 95 Amps and 3900 Watts, with peak ratings of 140 Amps and 5800 Watts. The maximum LiPo cell configuration is 12s.
CNC-machined aluminum alloy parts receive a gold electro-coated finish. Inside, the stator uses 0.35mm laminations and an epoxy coating to prevent shorts, with winding wire rated at 180 degrees C (356 F). Custom magnets are made to withstand high temperatures. The motor combines a 55mm stator diameter and 35mm stator thickness with 12 stator arms, 14 magnet poles and a 14 Turn Delta winding using 23-Strand 0.33mm wire. Its outside diameter is 66.4 mm, and its body length is 69.52 mm.
The motor comes with three female connectors, three heat-shrink pieces, a cross motor mount and four screws. Propeller mounting hardware comprises a thrust washer, tapered collar, spacer collar, prop washer, prop nut and two nut locks. The shaft measures 7.98 mm in diameter and 116 mm in overall length, with an M8*1.0 thread. The recommended setup pairs a Tribunus 12-130A SBEC ESC with a 12s 4500-5500mah battery and a 23x10E or 24x10E propeller.



