The Tempest 2820-840Kv is a 840 kv motor with a 28 × 20 mm stator, weighing 136 g and rated to 45 A.
| Brand | Tempest |
|---|---|
| Model | Tempest 2820-840Kv |
| kv | 840 |
| Max A | 45 |
|---|---|
| Phase resistance | 45.3 mΩ |
| Poles | 14 |
| Maker cells | — |
| Curve pack | 4S |
| Weight | 0.30 lb |
|---|---|
| Stator | 28×20 |
| Stator length | 20 mm |
| Max power | 1,000 W |
|---|
| Throttle | RPM | Thrust (lb) | Power (W) | Current (A) | Efficiency (%) | g/W |
|---|---|---|---|---|---|---|
| 30 % | 4,197 | 0.37 lb | 20 W | 1.1 | 51 | 8.42 |
| 40 % | 5,473 | 0.63 lb | 36 W | 2.1 | 61.5 | 7.98 |
| 50 % | 6,707 | 0.96 lb | 59 W | 3.5 | 68.2 | 7.33 |
| 60 % | 7,887 | 1.34 lb | 91 W | 5.4 | 72.4 | 6.69 |
| 70 % | 9,003 | 1.77 lb | 131 W | 7.8 | 74.9 | 6.12 |
| 80 % | 10,045 | 2.22 lb | 179 W | 10.8 | 76.3 | 5.61 |
| 90 % | 11,005 | 2.68 lb | 234 W | 14.4 | 76.9 | 5.18 |
| 100 % | 11,542 | 2.96 lb | 271 W | 16.8 | 77 | 4.96 |