HK3-4020-890KV Motor

HK3-4020-890KV Motor

The Scorpion HKIII-4020 Series Motor is designed for using on 550 class helicopters running on 6 to 8-cell Li-Po power. This motor represents the most technologically advanced power source ever offered for a 550 class electric helicopter.


Stator Diameter 40 mm(1.57 in)
Stator Thickness 20 mm(0.79 in)
No. of Stator Arms 12
Magnet Poles 10
Motor Wind 4T/5T Delta
Motor Wire 21-Strand 0.29mm
Motor Kv 890KV RPM/Volt
No-Load Current (IO/10v) 2.44 Amps
Motor Resistance (RM) 0.012 Ohms
Max Continuous Current 65 Amps
Max Continuous Power 1820 Watts
Weight 302 Grams (10.65 oz)
Outside Diameter 49.98 mm (1.97 in)
Shaft Diameter 4.98 mm (0.20 in)
Body Length 46.8 mm (1.84 in)
Overall Shaft Length 78.7 mm (3.10 in)
Max Lipo Cell 8s
Peak Current 75 Amps (5 seconds)
Peak Continuous Power 2100 Watts (5 seconds)
Motor Timing 5deg
Drive Frequency 8kHz
SKU SC-HK3-4020-890KV
Our price: £149.99
Including VAT 20%

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