The Cobra CM-4012/30 300Kv is a 300 kv motor with a 40 × 12 mm stator, weighing 140 g and rated to 22 A.
| Brand | Cobra |
|---|---|
| Model | Cobra CM-4012/30 300Kv |
| kv | 300 |
| Max A | 22 |
|---|---|
| Phase resistance | 124 mΩ |
| Poles | 22 |
| Maker cells | — |
| Curve pack | 12S |
| Weight | 0.31 lb |
|---|---|
| Stator | 40×12 |
| Stator length | 12 mm |
| Max power | 4,900 W |
|---|
| Throttle | RPM | Thrust (lb) | Power (W) | Current (A) | Efficiency (%) | g/W |
|---|---|---|---|---|---|---|
| 30 % | 4,419 | 0.22 lb | 22 W | 0.4 | 43.3 | 4.39 |
| 40 % | 5,806 | 0.39 lb | 39 W | 0.8 | 54.5 | 4.45 |
| 50 % | 7,178 | 0.61 lb | 64 W | 1.3 | 62.7 | 4.32 |
| 60 % | 8,531 | 0.89 lb | 98 W | 2 | 68.7 | 4.11 |
| 70 % | 9,859 | 1.21 lb | 142 W | 2.9 | 73.1 | 3.87 |
| 80 % | 11,155 | 1.57 lb | 197 W | 4 | 76.2 | 3.63 |
| 90 % | 12,411 | 1.98 lb | 264 W | 5.4 | 78.3 | 3.4 |
| 100 % | 13,147 | 2.24 lb | 311 W | 6.4 | 79.2 | 3.26 |