The Cobra C-2814/12 1390Kv is a 1,390 kv motor with a 28 × 14 mm stator, weighing 109 g and rated to 40 A.
| Brand | Cobra |
|---|---|
| Model | Cobra C-2814/12 1390Kv |
| kv | 1,390 |
| Max A | 40 |
|---|---|
| Phase resistance | 30 mΩ |
| Poles | 14 |
| Maker cells | — |
| Curve pack | 3S |
| Weight | 0.24 lb |
|---|---|
| Stator | 28×14 |
| Stator length | 14 mm |
| Max power | 600 W |
|---|
| Throttle | RPM | Thrust (lb) | Power (W) | Current (A) | Efficiency (%) | g/W |
|---|---|---|---|---|---|---|
| 30 % | 5,258 | 0.18 lb | 10 W | 0.8 | 42.7 | 7.87 |
| 40 % | 6,887 | 0.31 lb | 18 W | 1.4 | 54.8 | 7.91 |
| 50 % | 8,482 | 0.48 lb | 29 W | 2.2 | 63.4 | 7.56 |
| 60 % | 10,037 | 0.68 lb | 43 W | 3.4 | 69.3 | 7.09 |
| 70 % | 11,539 | 0.90 lb | 62 W | 4.9 | 73.4 | 6.59 |
| 80 % | 12,979 | 1.15 lb | 85 W | 6.7 | 76 | 6.12 |
| 90 % | 14,347 | 1.41 lb | 113 W | 9 | 77.6 | 5.69 |
| 100 % | 15,134 | 1.58 lb | 132 W | 10.6 | 78.2 | 5.45 |