This is an ultra-light motor sent over by T-Motor for testing, designed for efficiency and weight reduction rather than power.
Check out the full list of motors in this series here
Summary
Published: Sep 9, 2016 by quadmcfly
| Tested KV: | 2450kv |
| Weight: | 23g |
| Stator W: | 22mm |
| Stator H: | 5mm |
This motor was a bit of a surprise for me. The Air 200 line of motors from T-Motor has been marketed much less agressively by T-Motor than their main F line, and these showed up without much fanfair along with it's 2650kv counterpart. It is clear looking at these that their primary goal is weight reduction. All extra material has been removed where possible, and at 23g, (21g with short wires) that makes this the lightest 2205 motor that has come across the bench so far. That matches the old SunnySky X2204 motor in weight with an extra mm of stator height, which is quite a feat. Build quality of these is fantastic. They have the typical T-Motor smoothness, and machining quality is fantastic. That being said these motors won't be for everyone, or every build, as the weight saving will likely expose the motor to more risk of damage. In particular there are two things I noticed that could be issues. Primarily, the windings are entirely exposed on the bottom side of the motor, thanks to an almost entirely removed bottom structure. The only thing left is the area directly around the screw holes. The second concern is that the wires left for attaching the motors to the ESCs are simply extensions of the motor winding wire. They are stiff wire and could possibly cause some trouble soldering for those not familiar with magnet wire. The resin will likely need to be burnt or scraped off at the ends before being soldered to the ESCs. This will definitely be a niche motor for a very specific market, but I would say overall it is very well executed for what it is.
Results
It will be interesting to compare this to some of the 1806 motors that I will be testing soon, as that is really it's primary competition. The results here weren't particularly stunning, but as I mentioned, this is a motor designed for efficiency and weight not necessarily for brute force. That being said, the results were very solid for what it is. Given the light weight I decided to test this motor on a larger range of 4" props and rank this as a high KV motor given the extra 150kv, particularly as it seems more suited for the application here. The other motor that is in this weight class is the SunnySky X2204, and the Air 200 has significantly more power, easily breaking 1kg on even dual bladed 5" props. Even more impressively, it easily beats the old school Cobra 2300kv motor that was hailed as the powerhouse leader for years, while still being 4g lighter. It goes to show how dramatically our expecations have changed in the last 8 months. Overall I think this motor really nailed the market segement, providing solid strength and decent efficiency in its weight class with minimal sacrifices.
