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Scorpion Power System


New Electric Helicopter Speed Record by Scorpion HK-4530 Motor.

According to the  2nd ANNUAL RCHELIRESOURCE VISITOR’S CHOICE AWARD, Scorpion ranked #1in “Favourite Heli Electric Motor” catagory two years in a row.


Mr Ennio Gaber - champion of the FAI EUROPEAN CHAMPIONSHIPS for F3C, 2010 held in Cisnădie, Romania last 14-25th of July 2010 using  HK5020-450KV Motor.

Daniel Katsav (17)  Israel won 2nd place using a Scorpion HK4525-610KV Motor and Scorpion Commander 50V 130A ESC and Kyle Dahl (16) USA won 3rd place powered by a Scorpion HK4035-560KV Motor at the 3D Masters 2010 held in Venlo Netherlands last July 23-25, 2010.

Mr Nick Bergen & Michael Daris won the champion and the first runner-up at the Belgium 3D Competition last 3-4th of July 2010 and were powered by Scorpion HK40350-400KV and HK5020-510KV respectively.

Mr. Cees Verplanke won the 1st place at the Dutch F3C 2010 held in Venlo Netherlands last July 26, 2010 and was powered by Scorpion HK5020-450KV Motor.


Mr. Ennio Graber got the second place at the 2009 FAI F3C Heli World Championships held at the Academy of Model Aeronautics (International Aeromodeling Center), Muncie, Indiana, USA last 2nd-11th of August 2009 powered by Scorpion HK4035-560KV Motor.

Mr. Hashimoto got second place at the 2009 F3C National Championship held in Kyoto, Japan last 24-27th of September 2009 powered by Scorpion HK44035-560KV Motor.


On 16th - 20th Sep 2009, the 2009 NAMBA Fast Electric Nationals was held in Michigan, United States. We are proud to announce Mr. Doug Twaits, Team Leader of RumRunner, took his Scorpion HK-4035 powered mono to the podium in both Q-Mono and Q-Offshore, helping him to become this years High Points Champion and was powered by Scorpion HK4035-800Kv Motor.

On 11th - 13th Sep 2009, the 2009 Munich Heli Masters was held in Munich, Germany. We would like to congratulate Mr. Eric Weber, for the second year in a row, took the first place. Mr. Kyle Dahl and Mr. Marius Müller, won the second place and third place respectively, were powered by Scorpion HK40 Series Motor.


During the month of July, RC Heli Resource.Com held the first annual Visitor’s Choice Awards.  The awards covered 16 different categories and received 617 total votes cast. Thank you for everyone’s support and make Scorpion is ranked the #1 of the “ Your Favourite Heli Electric Motor” category .

Mr. Arnaud POYET won the championship at the Championnat de France F3N 2009 held in Orléans, France last 28th-30th of August 2009, powered by Scorpion HK4035-560KV Motor and Scorpion Commander 50V 130A ESC.

Mr. Jordan Sadosky have won the Champion in Junior Class and 1st runner-up in general classification at the Championnat de France F3N 2009 held in Orléans, France last 28th-30th of August 2009 poweres by Scorpion HK4035-560Kv Motor and Scorpion Commander 50V 130A ESC.


On 11th June 2009, The 2009 German Speed Cup  was held in PÖTING, Germany. We would like to congratulate Mr. Timo Wendtland have won the Champion in Drag Race,  and was powered by Scorpion HK4035-560Kv Motor.

RC Boat Competition in Landsberg Germany 2009

Mr. Armin Resiser won first place at The RC Boat (H-2 Class) Competition 2009 held in Landsberg, Germany and was powered by Scorpion B3640-2300KV In-Runner Motor and Scorpion 26V 120A ESC for Watercool. The B3640-2300KV In-Runner motor is not on sale.

Mr. Cees Verplanke won first place at the Dutch 3D&F3C Competition 2009 held in Venlo, Netherland last June 27 2009 and was powered by Scorpion HK4035-530Kv Motor and Scorpion SII-3014-1040v.

National F3C Competition at GA’ASH Isreal

There are two National Competition were held in GA’ASH, Israel, on 2nd May, 2009 and 20th June, 2009 respectively. We would like to congratulate Mr. Aviv Levy has won the Champion in both competition, and was powered by Scorpion HK4035-560Kv Motor and Scorpion Commander 50V 130A ESC.

National F3C Competition in Criquebeuf, France

The National F3C Competition was held in Criquebeuf, on 17th May, 2009. We would like to congratulate Mr. Arnaud POYET has won the Champion, and was powered by Scorpion HK4035-560Kv Motor and Scorpion Commander 50V 130A ESC.

International F3C Competition, Trophy de France

The International F3C Competition, Trophy de France was held in Maubeuge, on 22nd - 24th May, 2009. We would like to congratulate Mr. Laurent has won the Champion, and was powered by Scorpion HK4035-560Kv Motor.

E-Fest Heli Smackdown

Kyle Stacy won first place at the E-fest Heli Smackdwon, in Champaign Illinois with his Scorpion powered Miniature Aircraft Furion helicopter.

Below is a photo of Kyle receiving his First Place check, along with a photo of his Furion helicopter in action during the event.

Kyle’s helicopter is powered with a Scorpion HK-2221-6 motor that is controlled by a Scorpion 4-cell V2 60 amp Heli Edition ESC. This has become a very popular combination among the competition pilots using the 450 class machines.

YEAR 2008

Dutch F3C Competition 2008

Mr. Cees Verplanke have won the Championship again at the Dutch F3C Competition held in Almere, Netherland last September 21, 2008 and was powered by Scorpion HK4035-500Kv.

Scorpion Commander ESCs have been selected the best ESC Value in USA

Scorpion is pleased to announce, Scorpion ESCs have been selected the best ESC Value of 09 Buyer’s Guide by Backyard Magazine in USA, January 2009 issue (

2008 World Micro Heli Cup, Illinois USA

The 2008 Empire Hobby World Micro and Mini Heli Cup were held in 18-19th October, 2008 at the iHobby Expo located in the Donald E. Stephen Convention Center, Rosemont, Illinois. We would like to congratulate Kyle Stacy, the champion for both the Micro and the Mini class, were powered by Scorpion HK-2221-6 motor and 15v 45A ESC.

We would also like to congratulate Mr. Nick Maxwell, who took 2nd place in the 450 class, was powered by our Scorpion HK-2221-6 and 15v 60A Heli ESC.

UK 3D Competitions

On the 19th-21st September 2008 the best pilots in the UK met up for the annual UK 3D Championships. The weather was superb with sunshine both days and very light winds. The preliminary rounds were hard fought with three rounds contributing to a top five preliminary ranking. Those rounds were set moves, flight to music and freestyle. The top five pilots then went on to the finals to battle it out for the overall competition placings.

Trevor Burley who runs a Scorpion HK4025-740kv did just enough in the preliminary rounds, placing 5th overall and qualifying for the fly offs. In the finals Trev put in some very low and exciting technical flying to raise himself up through the field and come in 2nd place overall. Trev’s Scorpion powered T-Rex 600E was by far the most powerful model at the competition with some incredible power on display in some of his freestyle moves. This contributed to his final scores and 2nd place overall.

Flight report from Scorpion Customer on HK2221-8 Motor and 60A Heli ESC, By JEFF Kodysz

The next day was Labor Day, and I headed over to my buddy’s house for a cookout, but before I left the house, I made sure I had a few fully charged LiPos and the 450. I needed to change my startup procedure for the 450 a little bit, since I was using the Scorpion governor. Instead of spooling up in Normal mode to center stick (0 pitch at half throttle), I engaged throttle hold, flipped to Idle up 1, and moved the throttle stick to center ) pitch), then flipped throttle hold off and let the ESC’s soft-start take care of bringing the speed up. This was the recommended procedure for starting with this governor running. No big deal there, just something new to get used to.

The first flight was a hover test; just a basic shakedown to make sure everything worked correctly, and to see how much flight time I’d get. Again, using my Air Thunder 2200mAh packs, I was getting 6 full minutes to 80% discharge with the old Align motor. With the new Scorpion motor, I hit 7:00 just hovering, and would put back 80%, so surprisingly, I got a bit more time. Subsequent flights were promising. Lots of power available, and no real motor bogging was noticed. Tic-Tocs were much better and I didn’t lose altitude during multiples as I did when bogging out the old motor. Flips and rolls were much crisper and cleaner due to the slight increase in headspeed and lack of bogging. I did some pitch pumps and was glad to notice that the heli jumped straight up very quickly when given a burst of positive pitch. The only problem I ran into the whole day was during this flight, when I was introduced to vortex ring phenomenon, and accidentally bounced the heli off its skids. After checking over everything, I was relieved that nothing was bent or broken. Note to self: Don’t come straight down too fast!

The governor mode seemed to hold the headspeed well under load, and I didn’t really notice any overspeeding when transitioning through 0 pitch or when coming down the backside of loops, but then again, this wasn’t ever really a big problem with my 450…more for my 600e and N. The governor / rev-limit mode likewise worked well, and I didn’t really notice any brake-induced pulsing of the motor, but that could be attributed to the lack of overspeeding on this little heli. If I had some heavier blades, I might have noticed more, or it could be that there was some, and the ESC just dealt well with it. In any case, there were no surprises and the heli was very well behaved.

After all flights I checked the temperature of the ESC and motor, though I didn’t bring my thermometer with me. The motor was barely even warm on the hovering flight and cool to the touch on the rest. The ESC was warm after all flights, but not hot. I don’t guess I’m working it very hard. The battery packs were warm, but also not hot and again, were much cooler than they ever were with the Align motor.

All in all, I’m very pleased with the Scorpion HKII-2221-8 motor and Commander Heli 60A ESC. It’s a great combination that fits the 450-size helis well, and offers a very good compromise of performance to flight time. If I flew the heli with less attention to proper collective management, I’m sure I could bog the motor, but I’m not looking to do that. In fact, I’d rather have a motor that didn’t let me develop poor flying skills and I think the -8 gives the right amount of performance without “coddling” the pilot. It recovers fast enough that if I push a little too far on the collective, the heli lets me know it, but lets me correct for the error without being unforgiving.

The price point of the motor and ESC are very good, especially considering the features that Scorpion has built into them. The quality construction of the motor with its high-temp components and well-thought out design, and the state-of-the-art ESC with it’s versatile and useful helicopter specific features, and included easy to use remote programming capability are in my opinion, worth a lot more than Scorpion is charging. Yes, they cost a bit more than a stock replacement motor and ESC, but you get a lot of features for those extra shekels. Not only that, but the Scorpion products cost a bunch less than other third party solutions…..

….Scorpion is currently working on a drop-in replacement motor for the Trex 600E and based on my experience with this upgrade, I can say that I will definitely be replacing my stock 600XL motor with a Scorpion. I’m hoping that they will also be introducing a matching heli-version ESC with it as I believe Scorpion’s governor features would be even more beneficial to a heli of that size.


“Hayabusa”, designed and built by Stefan Penz, is now almost “official” the fastest Hotliners on the world - and it is powered by a very special scorpion motor.

On the Speedcup and Masters F3S-f 2008 in Laucha he was the fastet ever measured into the official FAI course.
We only have to wait for the official confirmation by FAI.

The first 3016 motor. Statorplates and magnets came from scorpion and have been built in into a customized housing.

The 3520 motor has a housing made by scorpion, too.
Its weight is 231g and it is able to use about 3,3kW avarage for 20 seconds without burning down.
The peak in speed flight is about 250Amps for 1 second.

Stefan was the winner of Dachau contest with 383,8km/h maximum speed and 365km/h average in both directions.

This is Stefans winner cup of Osnabrück 2008 speed contest.
The average speed in both directions was 394km/h.

This ist the best speed log, made in training with the 3520 drive.
Top speed was 423km/h.
So there is enough room for further improvement for the next year “speed cup”….


Our Scorpion products are not only performing well in the Sky, but also in the Marine!

Mr. Wang Tao won 1st place on F3E Junior Series and Mr. Qiu Weiqiang has won 5th place on F3E and 4th place on ECO Team Senior with Mr. Pen lie on the NAVIGA World Championship 2008. They were powered by B2852 and 6s 120A ESC. (Remark: The B8B2 In-Runner motos is not on sale, we made this prototype as to prove we have ability any type of motors for both competition and enjoyment) Their setup for the ESC were PCT=2, BRK=1, MAT=2, FREQ=1 TIM=1, SB=2.

12th F3C European Championship

The 12th F3C European Championship was successfully held from 6th to 13th July on the Maubeuge airport (Northern part of). It was organized by the French Federation of AeroModelling (FFAM) and the local club Asso Aero du Bassin de la Sambre (ASBS).

There were over 48 Pilots participated from 17 countries, We are pleased to announce and congratulate Mr. Ennio Graber, and Mr. Fabio Livi have won the 2nd and 5th place from Fly Offs series respectively. They were both powered by our new series, HK4035.

YEAR 2007

SCORPION MOTORS Dominate the i-Hobby Expo Mini Heli Competition

Scorpion powered helicopters stung the competition with a one-two punch in the Indoor Mini Heli Championships, held in conjunction with the Chicago i-Hobby Expo on October 20th and 21st. Scorpion sponsored pilots Nick Maxwell and Bobby Watts both flew prototype X-Cell 450 size helicopters from Miniature Aircraft USA powered with Scorpion Motors. Nick finished in first place with a record setting score of 823.5 points, and Bobby finished second with a score of 798.5 points. Nick’s helicopter was powered with a Scorpion HK-2221-6 motor and a Scorpion 55 amp ESC.Bobby flew a Scorpion HK-2221-8 motor in his machine, and both had plenty of power to spare. Below is a photo of Nick (on the left) and Bobby (on the right) standing with their helicopters, in front of our booth, at the Chicago show.

Rounding out the field in third place was 12 year old Kyle Stacy, who also put on an excellent show, and received a total of 773 points. For first place, Nick received a check for $1,500.00, for second place, Bobby received a check for $750.00, and for third place, Kyle received a custom Trex 450 helicopter from Align that had all of the metal parts plated with 24 karat gold! Here is a photo of the top 3 contenders from the event with their prizes.

Bobby Watts, Nick Maxwell and Kyle Stacey

Scorpion Motors and ESCs are proven and is being used by World’s best known RC Pilots and Champions  so “If You Want to be a Champion use Scorpion” for specifications that will perfectly suits for your Helis and Airplanes check our website for the availability or contact us for more information.