Tower Pro - 2408-21* (BP-21)
Specifications
- Type: Outrunner
- Weight: 47.00g (1.66oz)
- Maximum Amps: 12
Constants
- kV: 1750
- Rm: 0
- Io: 0
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 | 1 | 6.9 | 4.6 | 31 | 9120 | 30.2 | 184 | 6.49 | 76% |
| GWS HD 7x3.5 | 1 | 7.9 | 5.4 | 42 | 10230 | 33.9 | 240 | 8.47 | 74% |
| GWS HD 7x3.5 | 1 | 8.9 | 6.5 | 57 | 11430 | 37.9 | 302 | 10.65 | 73% |
| GWS HD 7x3.5 | 1 | 9.9 | 7.5 | 74 | 12420 | 41.2 | 361 | 12.73 | 72% |
| GWS HD 7x3.5 | 1 | 10.9 | 8.6 | 93 | 13440 | 44.5 | 434 | 15.31 | 70% |
| APC SF 7x4 | 1 | 6.9 | 6.6 | 45 | 8340 | 31.6 | 262 | 9.24 | 69% |
| APC SF 7x4 | 1 | 7.9 | 8.15 | 64 | 9270 | 35.1 | 333 | 11.75 | 67% |
| APC SF 7x4 | 1 | 8.9 | 9.6 | 85 | 10110 | 38.3 | 402 | 14.18 | 65% |
| APC SF 7x4 | 1 | 9.9 | 11.6 | 114 | 10980 | 41.6 | 482 | 17.00 | 63% |
| APC SF 7x4 | 1 | 10.9 | 13.2 | 143 | 11640 | 44.1 | 540 | 19.05 | 61% |
| GWS HD 8x4 | 1 | 6.9 | 7.9 | 54 | 7950 | 30.1 | 328 | 11.57 | 66% |
| GWS HD 8x4 | 1 | 6.9 | 7.75 | 53 | 8250 | 31.2 | 344 | 12.13 | 68% |
| GWS HD 8x4 | 1 | 7.9 | 9.3 | 73 | 9150 | 34.7 | 422 | 14.89 | 66% |
| GWS HD 8x4 | 1 | 7.9 | 9.55 | 75 | 8820 | 33.4 | 411 | 14.50 | 64% |
| GWS HD 8x4 | 1 | 8.9 | 11.1 | 98 | 9570 | 36.2 | 492 | 17.35 | 61% |
| GWS HD 8x4 | 1 | 8.9 | 11 | 97 | 9930 | 37.6 | 508 | 17.92 | 64% |
| GWS HD 8x4 | 1 | 9.9 | 12.7 | 125 | 10290 | 39.0 | 575 | 20.28 | 59% |
| GWS HD 8x4 | 1 | 9.9 | 12.9 | 127 | 10650 | 40.3 | 602 | 21.23 | 61% |
| GWS HD 8x4 | 1 | 10.9 | 14.7 | 160 | 10890 | 41.2 | 650 | 22.93 | 57% |