The Cobra CM-4520/14 400Kv is a 400 kv motor with a 45 × 20 mm stator, weighing 342 g and rated to 60 A.
| Brand | Cobra |
|---|---|
| Model | Cobra CM-4520/14 400Kv |
| kv | 400 |
| Max A | 60 |
|---|---|
| Phase resistance | 32 mΩ |
| Poles | 14 |
| Maker cells | — |
| Curve pack | 7S |
| Weight | 0.75 lb |
|---|---|
| Stator | 45×20 |
| Stator length | 20 mm |
| Max power | 1,330 W |
|---|
| Throttle | RPM | Thrust (lb) | Power (W) | Current (A) | Efficiency (%) | g/W |
|---|---|---|---|---|---|---|
| 30 % | 3,412 | 0.62 lb | 30 W | 1 | 60 | 9.27 |
| 40 % | 4,461 | 1.07 lb | 57 W | 2 | 70.1 | 8.46 |
| 50 % | 5,479 | 1.63 lb | 97 W | 3.4 | 76.4 | 7.61 |
| 60 % | 6,457 | 2.29 lb | 152 W | 5.3 | 80.2 | 6.85 |
| 70 % | 7,382 | 3.02 lb | 220 W | 7.8 | 82.6 | 6.21 |
| 80 % | 8,245 | 3.79 lb | 302 W | 10.9 | 84 | 5.69 |
| 90 % | 9,039 | 4.58 lb | 396 W | 14.6 | 84.8 | 5.25 |
| 100 % | 9,482 | 5.06 lb | 456 W | 17 | 85 | 5.03 |