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Old Mar 06, 2007, 12:43 AM
Cogito Ergo Sum
Joined Dec 2003
485 Posts
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something between eflite park 450 890 kv and the eflite park 480 1020 kv

I will be putting this on an eflite mini ultra stick , love the power of the 480, not the price, gotta be a fantastic knockoff that someone is using.
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Old Mar 06, 2007, 02:13 AM
Innov8tive's Avatar
Joined Jan 2007
1,759 Posts
How About a Scorpion 2215-22 Motor

The new Scorpion 2215-22 motor is right in between the E-Flite Park 450 and 480 motors in Kv. The Kv of the 2215-22 is 987 compared to 890 for the Park 450 and 1020 for the Park 480. Here is a photo of the motor.



The Scorpion 2215-22 is also quite a bit lighter than both of the E-Flite motors at only 2.16 ounces, compared to 2.5 ounces for the Park 450 motor and 3.1 ounces for the Park 480.

Running on a 3-cell Li-Po battery, the Scorpion 2215-22 motor will turn a pretty good sized prop. With an APC 10x5E prop, the motor spins at 7,425 RPM, draws 10.9 amps of current for 115 watts of power, and produces 25.6 ounces of thrust. When you consider that the Mini Ultra Stik is supposed to weigh between 22 and 24 ounces, this gives you better than 1:1 thrust to weight.

If you want a little more speed, then you can prop it up to a 10x6 or 10x7 prop and still stay under 14 amps.

If you really want to see it come alive, and your ESC can handle it, you can run it on 4 cells with a 9x5 prop and get 10,000 RPM and 35 ounces of thrust, on only 13 amps of current draw!

Oh, I almost forgot to mention, the Scorpion motor is quite a bargain too! It comes with a set of gold plated 3.5 mm bullet connectors already installed and comes packaged with a complete hardware package that includes a backplate motor mount, a 5mm threaded prop-shaft adapter, a set of female bullet connectors to match the ones that are already on the motor and the heatshrink tubing to cover them after you solder them onto your speed controller. With all of the accessories included, the Scorpion 2215-22 motor retails for only $44.99! Not too shabby when you consider that the retail price of the Park 450 is $79.99 and the Park 480 retails for $89.99.

Here is a link to the motor on the Innov8tive Designs website. Scorpion 2215-22 Motor

For a complete look at all the prop data that has been collected on the motor, look at the Scorpion 2215-22 Prop Data Chart.

One of the pilots that stopped by our booth at the Arizona Electric Festival had a Mini Ultra Stick. He was running an AXI 2212-26 and wanted more power, and the ability to turn a 10" prop. I suggested that he should go with a Scorpion 2215-22 motor, turning an APC 10x5E prop. He took the motor out of the box and bolted it right to his plane and flew it a few minutes later. He was amazed at the performance increase, and came over to our booth and thanked me for the motor recommendation. I am sure that you would also be very happy with this motor, and at half the price of the Park 480, your wallet will be pretty happy too!

Take a look at the website and let me know if you have any questions.

Lucien Miller

CVO Innov8tive Designs
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Old Mar 06, 2007, 10:28 AM
Registered User
Frederick Maryland USA
Joined Jul 2004
1,042 Posts
Somewhat less expensive than an Eflite and probably better quality is the Hacker A20-22 at 924kv http://www.stevensaero.com/shop/prod...cat=458&page=1
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Old Mar 06, 2007, 10:46 AM
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Chattanooga, Tennessee, United States
Joined May 2003
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Or the ExtremeFlight Torque 22T/930 - it tested just fractionally better than the Hacker.

http://www.extremeflightrc.com/html/torque.html
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Old Mar 07, 2007, 10:55 AM
Cogito Ergo Sum
Joined Dec 2003
485 Posts
Dr. K please do your magic

I have set a limit of $40 for the motor for the Mini ultra stick, the scorpion may be a contender, but what does your mystcal abilities tell you about this..

http://www.graysonhobby.com/catalog/...roducts_id=139

http://www.graysonhobby.com/images/a22_stats.jpg

the stick weighs in at 25 oz and I have a 20 amp esc.

why dont you just send your address to me, I will send you like $1 for every question you answer

I want the power of the eflite park 480 w/o the $80 price tag
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Last edited by Ronald Dobbs; Mar 07, 2007 at 11:09 AM.
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Old Mar 07, 2007, 02:21 PM
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Chattanooga, Tennessee, United States
Joined May 2003
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Sorry Ronald, but I have not tested the A22-20L - the figures posted on the website look reasonable at first glance, but I have a hard time believing that this motor, with the same props at the same rpm, is more "efficient" (as measured in g/W) than Axi, Hacker, Torque and Justgofly motors (and the Scorpion!). I would also be a little concerned that the Grayson data, using APC SF props, takes EVERY one of them beyond its rated maximum rpm!

I am getting a Scorpion 2215-22 for testing, perhaps next week.
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Last edited by Dr Kiwi; Mar 07, 2007 at 02:29 PM.
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Old Mar 07, 2007, 06:26 PM
Cogito Ergo Sum
Joined Dec 2003
485 Posts
fantastic

I will be waiting your test results and wait to make a decision. I do not want the Mini ultra stick to be vertically challenged at ALL!!!!!!

I owe you one dollar
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Old Mar 14, 2007, 07:26 PM
Cogito Ergo Sum
Joined Dec 2003
485 Posts
did you ever get around to testing the scorpion motor???





Quote:
Originally Posted by Dr Kiwi
Sorry Ronald, but I have not tested the A22-20L - the figures posted on the website look reasonable at first glance, but I have a hard time believing that this motor, with the same props at the same rpm, is more "efficient" (as measured in g/W) than Axi, Hacker, Torque and Justgofly motors (and the Scorpion!). I would also be a little concerned that the Grayson data, using APC SF props, takes EVERY one of them beyond its rated maximum rpm!

I am getting a Scorpion 2215-22 for testing, perhaps next week.
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Old Mar 14, 2007, 07:57 PM
Planes from 1oz to 55lb's
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USA, FL, Orlando
Joined Aug 2004
1,278 Posts
If I were you I would get this
https://www.unitedhobbies.com/UNITED...idProduct=3883

I don't have that particular motor, But have heard great news about it.

There are dozens of other motors on that site that would work.

Or if you want really cheap you could use one of those can outrunners by towerpro. UH does not have the right size though. I think they cost $18.

I would get on from the MT motors or the hextroniks series, or the "higher end" Towerpro's.

I have a MT motor and ave used a hextroniks one before. Physicaly, the Hextroniks looks way nicer. But my 35-30 MT is really powerfull for a 7.5oz motor. I run mine with 5s a123 at almost 60 amps and it only gets warm to touch. The hextroniks are also very powerful and most of the cheap chinese motors are comparable to the Axi, hacker, PArk. etc


Just my opinion...

simo10
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Old Mar 14, 2007, 09:26 PM
Cogito Ergo Sum
Joined Dec 2003
485 Posts
that is what dr kiwi is for, I owe him one dollar already
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