Turnigy Aerodrive SK3 - 4250-350kv Brushless Outrunner Motor
Turnigy SK3 Motors are the next leap forward in motor quality and design. We instructed the engineers to source the best quality magnets, bearings and materials available to them and develop a motor that would not only rival, but surpass the quality of many leading motor manufactures on the market today. The result is an efficient, high caliber motor using quality double shielded bearings, sintered Neodymium magnets and a string wound stator ensuring an accurate and consistent winding each and every time. The Turnigy SK3 motors are suited to modelers who are seeking a quality brushless motor without compromise. Specs.Turns: 14TVoltage: 4~5S LipolyRPM/V: 350kvInternal resistance: 0.033 OhmMax Loading: 53AMax Power: 1190WShaft Dia: 5.0mmBolt holes: 25mmBolt thread: M3Weight: 266gMotor Plug: 3.5mm Bullet Connector
PRODUCT ID: SK3-4250-350
Won't hurt it to run at 6, 8, or 12 cells.
The only voltage issue is insulation, and I flat out do not believe the insulation will break down below a couple hundred volts.
Current is another story. If you exceed the rated current, you do risk damage. Increasing voltage increases current, but it's the current that's the problem, not the voltage.
I plan to use use this motor to do an electric conversion on a 3m sailplane. I will run 2 3s batteries in series ('cause that's what I standardize to as much as possible).
Check the reviews. People are running them on 6s w/o problem.
I should add something to my previous reply. My voltage comments were about the motor. Just in case there is confusion, the voltage rating on ESC's is very real. The issue is the voltage rating of the mosfets, and higher voltage mosfets cost more, so often lower cost ESC's will not handle higher voltages. Motors are just wire and magnets. Except for the wire insulation, which does have a voltage rating (which is generally pretty high), current is what damages motors.
Replaced my Turnigy 50-55 400kv motor with this motor as it is 2ozs lighter and can turn a bigger prop (16x6) on 6s at the same current. No problems.
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Just got mine today. I used a 14x7 prop, 4 cells and at full throttle I was pulling not even 200 watts and only around 20 amps. When I pulled it out of the box I noticed it didn't even turn. After working it for a bit, it came loose and turned freely. I ran it up to full throttle several times but it just didn't get up to speed or power for me. Sounds to me like I got a defective one.