The Cobra CM-4520/18 310Kv is a 310 kv motor with a 45 × 20 mm stator, weighing 340 g and rated to 45 A.
| Brand | Cobra |
|---|---|
| Model | Cobra CM-4520/18 310Kv |
| kv | 310 |
| Max A | 45 |
|---|---|
| Phase resistance | 44 mΩ |
| Poles | 14 |
| Maker cells | — |
| Curve pack | 9S |
| Weight | 0.75 lb |
|---|---|
| Stator | 45×20 |
| Stator length | 20 mm |
| Max power | — |
|---|
| Throttle | RPM | Thrust (lb) | Power (W) | Current (A) | Efficiency (%) | g/W |
|---|---|---|---|---|---|---|
| 30 % | 3,420 | 0.62 lb | 30 W | 0.8 | 60.5 | 9.33 |
| 40 % | 4,491 | 1.09 lb | 58 W | 1.5 | 70.7 | 8.48 |
| 50 % | 5,550 | 1.68 lb | 100 W | 2.7 | 77 | 7.58 |
| 60 % | 6,594 | 2.39 lb | 160 W | 4.3 | 81.1 | 6.79 |
| 70 % | 7,618 | 3.22 lb | 239 W | 6.4 | 83.6 | 6.11 |
| 80 % | 8,619 | 4.15 lb | 341 W | 9.2 | 85.2 | 5.53 |
| 90 % | 9,590 | 5.18 lb | 466 W | 12.6 | 86.1 | 5.04 |
| 100 % | 10,162 | 5.85 lb | 555 W | 15.1 | 86.4 | 4.78 |