Scorpion HKII-2221-12 Brushless Motor (450 Class)

Scorpion-Acc-HK2221-12

USD $79.90

Scorpion HKII-2221-12 Brushless Motor (450 Class) - Scorpion-Acc-HK2221-12

What about the Scorpion Motors?
They are very powerful motors, won a lot of world championsship, as you can see almost all players in the top class competitions are using Scorpions Motors in their helis (without Sponsorship), you know it's gotta be good. From the common 450 size to the enormous 700 size electric helis, you see it everywhere. Helipal tends to carry products in three levels, the entry level, the mid level and the high end level, the Scorpion Motors are the most high end stuff. Their products are not limited to competitive use, since they use only the best material in making the motors, it can take any challenge your throw at it, and still wants to take some more. If you're looking for the best Electric Motor for you're helicopter, Scorpion Motor is the one, no one will doubt that.

Here is what they say in their website
Scorpion Power System is pleased to announce the release of our new series of Brushless Outrunner Motors. These motors raise the bar in both quality and performance, and are establishing themselves as the new Gold Standard for model aircraft power! All of the Scorpion Brushless Motors are manufactured from the finest quality components using state of the art CNC machine tools. Every component of the motors are of the highest quality, from the materials used, to the box they ship in. They are designed to provide reliable power for your model aircraft at affordable prices, offering a total performance solution.

Scorpion Motors are designed from the ground up with the best quality components available to provide an excellent value for you, the R/C modeler. We utilize high quality aluminum alloys that are CNC machined and anodized for a fit and finish that is second to none. Unlike other motor manufactures that use off-the-shelf NdFeB magnets with a maximum Curie temperature of 80 to 100 degrees C, our motor magnets are custom manufactured to be able to withstand high temperatures. The wire we use to wind the stators is rated to 180 degrees C (356 F), so it can take the heat and keep on performing. This all adds up to a motor that can provide you the power you need, without going up in a cloud of smoke if you push it a little too hard. With all these features, you would expect to pay top dollar for a motor of this caliber, but with our efficient manufacturing procedures and streamlined distribution chain, Scorpion motors retail for about 1/2 the price of other "Name Brand" Brushless Motors, making them one of the best overall values on the market today. We are so confident in the quality of our motors that we back them with a 2-Year Warranty against defects in materials and workmanship. You deserve the the best quality motor available at an affordable price, so the next time you need a brushless motor, do yourself a favor and give Scorpion Brushless motors a try, you will be glad you did!

What's included?
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).

About this HKII-2221-12 motor
For people that want to run a 4-cell battery pack, the HK-2221-10 and HK-2221-12 motors work very well. Basically, if you run the -10 motor on 4 cells, you will get similar performance to the -6 motor on 3 cells, but with a higher efficiency. Likewise, running the -12 motor on 4 cells will get you numbers similar to the -8 motor on 3 cells, again with a higher efficiency due to the higher voltag

Specifications

Stator Diameter	22.0 mm (0.87 in)
Stator Thickness	21.0 mm (0.83 in)
No. of Stator Arms	9
Magnet Poles	6
Motor Wind	12 Turn Delta
Motor Wire	12-Strand 0.21mm
Motor Kv	2580 RPM / Volt
No-Load Current (Io)	1.5 Amps @ 10 volts
Motor Resistance (Rm)	0.038 Ohms
Max Continuous Current	38 Amps
Max Continuous Power	530 Watts
Weight	81 Grams (2.86 oz)
Outside Diameter	27.9 mm (1.098 in)
Shaft Diameter	3.17 mm (0.125 in)
Body Length	38.3 mm (1.508 in)
Overall Shaft Length	58.7 mm (2.311 in)
Max Lipo Cell	4s
Motor Timing	5deg
Drive Frequency	8kHz