Scorpion HK-2520 motors have been developed for the 450 class electric helicopters running on 6-cell Li-Po power such as WARP 360. This motor is designed to provide all the power that you can use, while still maintaining excellent efficiency and cool runn
Scorpion HK-2520 motors have been developed for the 450 class electric helicopters running on 6-cell Li-Po power such as WARP 360. 
This motor is designed to provide all the power that you can use, while still maintaining excellent efficiency and cool running characteristics. The 3.5mm shaft kit which is specialize for the new generation 450 class electric helicopter.
Scorpion HK-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!
CN Copyright: 2013Z11L004467
Worldwide Patent : Pending
Specifications
Stator Diameter 25.0 mm (0.98 in)
Stator Thickness 20.0 mm (0.79 in)
No. of Stator Arms 12
Magnet Poles 10
Motor Wind 9 Turn Delta
Motor Wire 10-Strand 0.25mm
Motor Kv 1580Kv RPM/Volt
No-Load Current (IO/10V) 1.77 Amps
Motor Resistance (Rm) 0.032 Ohms
Max Continuous Current 34 Amps
Max Continuous Power 715 Watts
Weight 104 Grams (3.64 oz)
Outside Diameter 31.5 mm (1.24 in)
Shaft Diameter 3.5 mm (0.14 in)
Body Length 39.6 mm (1.56 in)
Overall Shaft Length 57.5 mm (2.26 in)
Max Lipo Cell 6s
Max Peak Current 45A (2 seconds)
Max Peak Power 945 Watts (2 seconds)
Motor Timing 5deg
Drive Frequency 8kHz
Included in the Box
1 x Scorpion HK-2520-1580KV Motor
3 x Female Connectors
3 x Heat Shrink
4 x M3 Screws
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