Century - Hummingbird 20mm
Specifications
- Type: Inrunner
- Weight: 46.00g (1.62oz)
- Diameter: 20.10mm (0.79in)
- Length: 33.20mm (1.31in)
- Shaft Diameter: 2.00mm (0.08in)
- Maximum Amps: 10
Constants
- kV: 4480
- Rm: 0.24
- Io: 0.45
Io Test Data
Dr Kiwi test results
| Volts | Amps | RPM |
|---|---|---|
| 7 | 0.35 | 30987 |
| 8 | 0.4 | 35376 |
| 10 | 0.45 | 44319 |
Test Data
Dr Kiwi test results
| Propeller | Gear Ratio | Volts | Amps | Watts | RPM | Speed (mph) | Thrust (g) | Thrust (oz) | RPM as % of Kv*V |
|---|---|---|---|---|---|---|---|---|---|
| GWS HD 7x3.5 | 3.2 | 6.9 | 2.95 | 20 | 8820 | 29.2 | 174 | 6.14 | 91% |
| GWS HD 7x3.5 | 3.2 | 7.9 | 3.6 | 28 | 9960 | 33.0 | 226 | 7.97 | 90% |
| GWS HD 7x3.5 | 3.2 | 8.9 | 4.35 | 38 | 10980 | 36.4 | 280 | 9.88 | 88% |
| GWS HD 7x3.5 | 3.2 | 9.9 | 5.2 | 51 | 12060 | 40.0 | 345 | 12.17 | 87% |
| GWS HD 7x3.5 | 3.2 | 10.8 | 6.05 | 65 | 13020 | 43.1 | 407 | 14.36 | 86% |
| GWS HD 8x4 | 3.2 | 6.9 | 5.75 | 39 | 7710 | 29.2 | 316 | 11.15 | 80% |
| GWS HD 8x4 | 6.6 | 7 | 1.4 | 9 | 4530 | 17.2 | 109 | 3.84 | 95% |
| GWS HD 8x4 | 3.2 | 7.9 | 7.1 | 56 | 8610 | 32.6 | 398 | 14.04 | 78% |
| GWS HD 8x4 | 6.6 | 7.9 | 1.7 | 13 | 5130 | 19.4 | 141 | 4.97 | 96% |
| GWS HD 8x4 | 3.2 | 8.9 | 8.5 | 75 | 9420 | 35.7 | 479 | 16.90 | 76% |
| GWS HD 8x4 | 6.6 | 8.9 | 2 | 17 | 5730 | 21.7 | 180 | 6.35 | 95% |
| GWS HD 8x4 | 3.2 | 9.8 | 9.95 | 97 | 10170 | 38.5 | 568 | 20.04 | 74% |
| GWS HD 8x4 | 6.6 | 9.9 | 2.35 | 23 | 6360 | 24.1 | 216 | 7.62 | 95% |
| GWS HD 8x4 | 3.2 | 10.8 | 11.35 | 122 | 10800 | 40.9 | 644 | 22.72 | 71% |
| GWS HD 8x4 | 6.6 | 10.9 | 2.75 | 29 | 6930 | 26.2 | 260 | 9.17 | 94% |
| GWS HD 9x5 | 6.6 | 6.9 | 2.3 | 15 | 4410 | 20.9 | 185 | 6.53 | 94% |
| GWS HD 9x5 | 6.6 | 7.9 | 2.8 | 22 | 4950 | 23.4 | 235 | 8.29 | 92% |
| GWS HD 9x5 | 6.6 | 8.9 | 3.35 | 29 | 5430 | 25.7 | 292 | 10.30 | 90% |
| GWS HD 9x5 | 6.6 | 9.9 | 3.9 | 38 | 6060 | 28.7 | 352 | 12.42 | 90% |
| GWS HD 9x5 | 6.6 | 10.9 | 4.65 | 50 | 6600 | 31.2 | 423 | 14.92 | 89% |
| GWS HD 10x6 | 6.6 | 6.9 | 3.15 | 21 | 4230 | 24.0 | 246 | 8.68 | 90% |
| GWS HD 10x6 | 6.6 | 7.9 | 3.85 | 30 | 4740 | 26.9 | 310 | 10.93 | 88% |
| GWS HD 10x6 | 6.6 | 8.9 | 4.7 | 41 | 5280 | 30.0 | 386 | 13.62 | 87% |
| GWS HD 10x6 | 6.6 | 9.9 | 5.6 | 55 | 5760 | 32.7 | 462 | 16.30 | 86% |
| GWS HD 10x6 | 6.6 | 10.8 | 6.45 | 69 | 6240 | 35.5 | 545 | 19.22 | 85% |
| GWS HD 11x7 | 6.6 | 6.9 | 4.65 | 32 | 3990 | 26.4 | 344 | 12.13 | 85% |
| GWS HD 11x7 | 6.6 | 7.9 | 5.6 | 44 | 4440 | 29.4 | 432 | 15.24 | 83% |
| GWS HD 11x7 | 6.6 | 8.9 | 6.8 | 60 | 4890 | 32.4 | 532 | 18.77 | 81% |
| GWS HD 11x7 | 6.6 | 9.8 | 8 | 78 | 5310 | 35.2 | 616 | 21.73 | 80% |
| Propeller | Gear Ratio | Volts | Amps | Watts | RPM | Speed (mph) | Thrust (g) | Thrust (oz) | RPM as % of Kv*V |
| GWS HD 11x7 | 6.6 | 10.8 | 9.2 | 99 | 5700 | 37.8 | 711 | 25.08 | 78% |
| GWS HD 12x8 | 6.6 | 6.9 | 6.55 | 45 | 3630 | 27.5 | 421 | 14.85 | 78% |
| GWS HD 12x8 | 6.6 | 7.8 | 7.9 | 61 | 4020 | 30.4 | 521 | 18.38 | 76% |
| GWS HD 12x8 | 6.6 | 8.8 | 9.3 | 81 | 4410 | 33.4 | 615 | 21.69 | 74% |
| GWS HD 12x8 | 6.6 | 9.7 | 10.8 | 104 | 4740 | 35.9 | 700 | 24.69 | 72% |
| GWS HD 12x8 | 6.6 | 10.7 | 12.1 | 129 | 5010 | 38.0 | 810 | 28.57 | 69% |