The Tempest 2221-1250Kv is a 1,250 kv motor with a 22 × 21 mm stator, weighing 86 g and rated to 38 A.
| Brand | Tempest |
|---|---|
| Model | Tempest 2221-1250Kv |
| kv | 1,250 |
| Max A | 38 |
|---|---|
| Phase resistance | 47.3 mΩ |
| Poles | 14 |
| Maker cells | — |
| Curve pack | 3S |
| Weight | 0.19 lb |
|---|---|
| Stator | 22×21 |
| Stator length | 21 mm |
| Max power | 560 W |
|---|
| Throttle | RPM | Thrust (lb) | Power (W) | Current (A) | Efficiency (%) | g/W |
|---|---|---|---|---|---|---|
| 30 % | 4,553 | 0.25 lb | 19 W | 1.5 | 63.7 | 5.86 |
| 40 % | 5,877 | 0.43 lb | 36 W | 2.8 | 71.2 | 5.33 |
| 50 % | 7,121 | 0.65 lb | 61 W | 4.8 | 74.8 | 4.78 |
| 60 % | 8,272 | 0.89 lb | 94 W | 7.4 | 76.1 | 4.3 |
| 70 % | 9,321 | 1.15 lb | 134 W | 10.8 | 76.2 | 3.89 |
| 80 % | 10,262 | 1.41 lb | 180 W | 14.8 | 75.5 | 3.56 |
| 90 % | 11,091 | 1.67 lb | 231 W | 19.4 | 74.4 | 3.27 |
| 100 % | 11,540 | 1.82 lb | 264 W | 22.4 | 73.5 | 3.13 |