The Scorpion SII-55mm Aircraft Motors are the second generation of high efficiency electric motors from Scorpion that are widely used to power 30cc to 50cc size aircraft. The re-designed SII series features a new magnet configuration along with an updated housing design which provides higher efficiency, higher power and less eddy current losses with lower internal resistance than our previous S-55 series.

Scorpion starts with premium materials including high quality aluminum alloy parts that are produced on the latest CNC milling machines. These parts are then gold Electro-coated to provide a beautiful, long-lasting finish. The stators are made by top grade 0.2mm laminations to give maximum efficiency, and minimum Eddy current losses. The stators are epoxy coated to prevent shorts, and are wound with wire that is rated at 180 degrees C (356 F). The magnets used in Scorpion Motors are custom manufactured to be able to withstand high temperatures.

Scorpion Motors are built to last, and are backed with a 2-Year warranty against defects in materials or workmanship.

HK Design Patent No. : 1201208.6

CN Design Patent No. : 201230267986.0

All other worldwide Patent: Pending

Scorpion SII-5525-195 Motor Specifications
Stator Diameter	55.0 mm (2.165 in)
Stator Thickness	25.0 mm (0.984 in)
Number of Stator Slots	12
Number of Magnet Poles	14
Motor Wind	20 Turn Delta
Motor Wire	18-Strand 0.33mm
Motor Kv Value	195 RPM per Volt
No Load Current (Io)	0.88 Amps @ 10 Volts
Motor Resistance (Rm) per Phase	0.034 Ohms
Motor Resistance (Rm) Phase to Phase	0.023 Ohms
Maximum Continuous Current	80 Amps
Max Continuous Power (8-cell Li-Po)	2350 Watts
Max Continuous Power (10-cell Li-Po)	2950 Watts
Max Continuous Power (12-cell Li-Po)	3350 Watts
Motor Weight	708 grams (24.97oz.)
Outside Diameter	66.4 mm (2.614 in.)
Shaft Diameter	8.00 mm (0.315 in.)
Motor Body Length	59.8 mm (2.354 in.)
Overall Shaft Length	106 mm (4.173 in.)