Scorpion SII-5525-210KV

The Scorpion SII-5525-210KV is an electric motor for 30–40cc airframes and 73–78-inch aerobatic airplanes using 10s batteries. It combines CNC-machined aluminum alloy construction, laminated epoxy-coated stators and high-temperature winding wire, with maximum continuous ratings of 90 Amps and 3150 Watts. Mounting hardware and connectors are included.

ScorpionDrone motor

Motor Kv: 210 RPM / Volt
Weight: 708 Grams (22.98 oz)

Product overview

The Scorpion SII-5525-210KV electric motor is intended for 30–40cc airframes and aerobatic airplanes with a 73–78-inch wingspan running on 10s batteries. Its 210 RPM / Volt winding combines a 12-arm stator, 14 magnet poles and a 17 Turn Delta configuration. Maximum continuous ratings are 90 Amps and 3150 Watts, with peak ratings of 135 Amps and 4700 Watts. The recommended installation uses a Tribunus 12-130A ESC, 10s 4000–5000mah batteries and 21x10E or 22x10E propellers, giving a 35cc gas-equivalent setup.

Construction combines CNC-machined aluminum alloy parts with a gold electro-coated finish, epoxy-coated stators made from 0.35mm laminations, and custom magnets designed to withstand high temperatures. The winding wire is rated at 180 degrees C (356 F). Supplied equipment includes the motor, three female connectors, three heat shrink pieces, a cross motor mount, four screws, a thrust washer, tapered collar, spacer collar, prop washer, prop nut and two nut locks. Weight including packaging is 1500g. A two-year warranty covers defects in materials or workmanship.

Motors & ESCs

Specifications

Scorpion SII-5525-210KV specifications
Specification	Value & conditions
Product and application	Scorpion SII-5525-210KV electric motor
Stator Diameter	55mm (2.165 in)
Stator Thickness	25mm (0.984 in)
No. of Stator Arms	12
Magnet Poles	14
Motor Wind	17 Turn Delta
Motor Wire	18-Strand 0.33mm
Motor Kv	210 RPM / Volt
No-Load Current (Io/10V)	1.11 AmpsAt 10V.
Motor Resistance (Rm)	0.026 Ohms
Max Continuous Current	90 AmpsContinuous operation.
Max Continuous Power	3150 WattsContinuous operation.
Weight	708 Grams (22.98 oz)
Outside Diameter	66.4 mm (2.614 in)
Shaft Diameter	7.98 mm (0.314 in)
Thread size	M8*1.0
Body Length	59.82 mm (2.355 in)
Overall Shaft Length	106 mm (4.173 in)
Max Peak Current	135 AmpsPeak operation.
Max Peak Power	4700 WattsPeak operation.
Max Lipo Cell	10s
Motor Timing	5deg
Drive Frequency	8kHz
HK Design Patent No.	1201208.6
CN Design Patent No.	201230267986.0
Taiwan Design Patent No.	101303643
Construction	CNC-machined aluminum alloy parts with gold electro-coating; epoxy-coated stators with 0.35mm laminations; winding wire rated at 180 degrees C (356 F); custom high-temperature magnets.Winding wire temperature rating.
Application and recommended setup	For 30-40cc airframes or aerobatic airplanes with a 73-78-inch wingspan on 10s batteries. Recommended setup: 35cc gas equivalent; Tribunus 12-130A ESC; 10s 4000-5000mah batteries; 21x10E or 22x10E propellers.Recommended aircraft installation running on 10s batteries.
Box contents and packaged weight	1 motor, 3 female connectors, 3 heat shrink pieces, 1 cross motor mount, 4 screws, 1 thrust washer, 1 tapered collar, 1 spacer collar, 1 prop washer, 1 prop nut and 2 nut locks. Weight including packaging: 1500g.Included equipment; weight includes packaging.
Warranty	2-Year warrantyAgainst defects in materials or workmanship.