The Scorpion HKIII-5020-450 motor is designed for 700 class Electric Helicopters, and for people that want to convert their .90 size glow helicopter to electric power. This motor has a maximum continuous power rating of 3770 watts at 85 amps, and a peak power rating of 5320 watts at 120 amps! The larger diameter 50mm stator allows these motors to produce insane amounts of torque.
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 0.20mm 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 N-50EH style, which are rated for operation at 200 degrees C (392 F), 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!
Weight including packaging
|Scorpion HKIII-5020-450Kv Motor Specifications|
|Stator Diameter||50.0 mm (1.56 in)|
|Stator Thickness||20.0 mm (0.79 in)|
|Number of Stator Arms||12|
|Number of Magnet Poles||10|
|Motor Wind||14 Turn Delta|
|Motor Wire||16-Strand 0.33mm|
|Motor Kv Value||450 RPM per Volt|
|No Load Current @ 10v||1.31 Amps|
|Motor Resistance (Rm) ||0.017 Ohms|
|Maximum Continuous Current||85 Amps|
|Max Continuous Power||3770 Watts|
|Motor Weight||501 grams (17.67 oz.)|
|Outside Diameter||61.1 mm (2.44 in.)|
|Shaft Diameter||5.98 mm (0.244 in.)|
|Motor Body Length||53.7 mm (2.11 in.)|
|Overall Shaft Length||93.30 mm (3.87 in.)|
|Peak Current||120A (5 seconds)||Peak Power||5320 Watts (5 seconds)
|Max LiPo Cell||12s|
1 x Scorpion HKIIII-5020-450KV