The Tempest 2221-890Kv is a 890 kv motor with a 22 × 21 mm stator, weighing 86 g and rated to 28 A.
| Brand | Tempest |
|---|---|
| Model | Tempest 2221-890Kv |
| kv | 890 |
| Max A | 28 |
|---|---|
| Phase resistance | 86 mΩ |
| Poles | 14 |
| Maker cells | — |
| Curve pack | 4S |
| Weight | 0.19 lb |
|---|---|
| Stator | 22×21 |
| Stator length | 21 mm |
| Max power | 415 W |
|---|
| Throttle | RPM | Thrust (lb) | Power (W) | Current (A) | Efficiency (%) | g/W |
|---|---|---|---|---|---|---|
| 30 % | 4,451 | 0.24 lb | 12 W | 0.7 | 48 | 8.74 |
| 40 % | 5,815 | 0.41 lb | 22 W | 1.3 | 59.4 | 8.49 |
| 50 % | 7,145 | 0.62 lb | 35 W | 2.1 | 66.9 | 7.92 |
| 60 % | 8,435 | 0.87 lb | 54 W | 3.2 | 71.9 | 7.3 |
| 70 % | 9,678 | 1.15 lb | 78 W | 4.6 | 75 | 6.7 |
| 80 % | 10,864 | 1.47 lb | 108 W | 6.4 | 76.8 | 6.15 |
| 90 % | 11,988 | 1.80 lb | 144 W | 8.6 | 77.7 | 5.67 |
| 100 % | 12,633 | 2.00 lb | 168 W | 10.1 | 77.9 | 5.41 |