Scorpion HKII-2221-2010 Brushless Motor (2010KV) 6S T-REX 450PRO V2
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Here it is, the new V2 series HK-2221-2010 motor, specifically designed for 6-cell Li-Po power in your 450 class electric helicopter. Like the earlier HK-2221-1630 model, this motor was developed to take advantage of the new high voltage set-ups that are currently being used for increased power and efficiency in your electric powered helicopter, but a slightly hotter wind give you the most power ever available for a 450 class electric helicopter! Improvements include better cooling with the integrated centrifugal blower fan, higher efficiency with a new stator design and a new threaded-on flux ring for more solid construction.
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 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.
All Scorpion HK Series 22mm motors come with 3.5mm male Bullet style connectors already attached, and include a hardware package that contains 3 matching female Bullet connectors for your speed controller, heatshrink to cover the bullet connectors and mounting screws. Since the HK series motors are primarily designed for Helicopter and Ducted Fan use, they do not include a prop adapter. If you intend on running a prop on this motor, you will need to purchase a prop adapter for a 3.17mm shaft (1/8 inch). You can order the 3.17mm Prop Adapter here on our website.
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.
The Scorpion Motor Bearing Lubrication Kit is now available for maintaining the bearings in your helicopter motor. To view this product, please check out the Bearing Lubrication Kit.
If you need mounting screws for this motor, please check out our selection of Motor Mounting Screws.
For the best overall combination of quality, performance, and value, use Scorpion Motors in your helicopter!
Stator Diameter ............................ 22.0 mm (0.866 in)
Stator Thickness ........................... 21.0 mm (0.827 in)
No. of Stator Arms ................................................. 9
No. of Magnet Poles ................................................ 6
Motor Wind ........................................... 16 Turn Delta
Motor Wire ...................... 10-Strand 0.21mm (31 AWG)
Motor Kv ........................................... 2010 RPM / Volt
No-Load Current (Io) ................. 1.01 Amps @ 10 volts
Motor Resistance (Rm) ............................. 0.052 Ohms
Max Continuous Current ............................... 28 Amps
Max Continuous Power ................................ 590 Watts
Weight .......................................... 79 Grams (2.79oz)
Outside Diameter .......................... 27.9 mm (1.097 in)
Shaft Diameter ............................. 3.17 mm (0.125 in)
Body Length ................................. 37.9 mm (1.492 in)
Overall Shaft Length ...................... 58.7 mm (2.311 in)
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I have 2 of these in 6s 450s running on a Castle Edge 50 Lite and they are absolutely unboggable. They come down warm but not hot and they're easy on the batteries.
This motor is a perfect, drop in replacement, in the Curtis Youngblood Stingray, if you want to go 6S. The perfect battery size seems to be 6S 2200mAh.
I run these on all my custom stretched 450s now. And there is no going back. I picked up a full 2 to 3 minutes in flight times doing the same routines over any of my 3s setups. Plus, there is mind boggling power right up till the end, no fade, none. My components come down barely warm to the touch. This tells you how efficient the system is running. Unlike running the 3s setup where I could fry eggs on the motor and esc. Pretty much the same results on every forum the world over from guys who have done this. And they all rave after the changeover.
Plus, this system is far far easier on batteries. I have over 250 to 300 flights on some of my 1300ma 6s batts and they still perform well.
I did have to convert my fleet over to microheli delrin gears. On stockers I was blowing through them just doing pitch pumps due to how wobbly and non concentric the stock gear sets were. The incredible performance this motor produces will find and expose every weak link in your system.
Still, I will never fly a 3s or even 4s system after this ever again.
This upgrade made my helis into over driven little power hungry monsters on steroids!