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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.
Scorpion Competition Series Brushless Motors are built from the best materials available, and are designed to provide both quality and performance at an affordable price. Scorpion starts with 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 with 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, making a motor that is virtually impossible to burn up in normal use.
Scorpion Motors are built to last, and are backed with a 2-Year warranty against defects in materials or workmanship. However, due to the high RPM of these motors, and the fact that we cannot control the installation and setup, the bearings are not covered by the 2-Year warranty, nor is any subsequent damage caused to the motor by a bearing failure. Bearings are a normal wear item, and as such, need to be maintained and changed periodically. For maximum life, make sure that a sufficient gap is left between the pinion and main gear during motor installation to avoid binding, and put a small drop of oil on each bearing every 5-6 flights. It is the responsibility of the pilot to ensure that the bearings are maintained properly.
For the best overall combination of quality, performance, and value, use Scorpion Motors in your 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 3T/4T Delta
Motor Wire 24-Strand 0.29mm
Motor Kv 1100KV RPM/Volt
No-Load Current (IO/10v) 3.15 Amps
Motor Resistance (RM) 0.008 Ohms
Max Continuous Current 78 Amps
Max Continuous Power 1640 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 6s
Peak Current 90 Amps (5 seconds)
Peak Continuous Power 1890 Watts (5 seconds)
Motor Timing 5deg
Drive Frequency 8kHz
Included in the Box
1 x Scorpion HKIII-4020-1100KV Motor
3 x Female Connectors
3 x Heat Shrink
4 x M3 Screws
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