The APC 21x13E is a 21×13 inch, 2-blade propeller weighing 110 g.
| Maker | APC |
|---|---|
| Model | 21x13E |
| Size | 21×13 in |
|---|---|
| Pitch | 13.00 in |
| Blades | 2 |
| Rotation | CCW |
| P/D | 0.62 |
| Weight | 0.24 lb |
| Max RPM | 11,000 |
|---|
| Throttle | RPM | Thrust (lb) | Power (W) | Current (A) | Efficiency (%) | g/W |
|---|---|---|---|---|---|---|
| 30 % | 772 | 0.30 lb | 8 W | 0.2 | 44.7 | 16.28 |
| 40 % | 1,003 | 0.51 lb | 14 W | 0.3 | 55.5 | 16.2 |
| 50 % | 1,226 | 0.78 lb | 23 W | 0.5 | 63 | 15.45 |
| 60 % | 1,444 | 1.10 lb | 34 W | 0.7 | 68.1 | 14.46 |
| 70 % | 1,655 | 1.46 lb | 49 W | 1 | 71.4 | 13.42 |
| 80 % | 1,860 | 1.85 lb | 68 W | 1.4 | 73.2 | 12.41 |
| 90 % | 2,058 | 2.29 lb | 91 W | 1.8 | 74.1 | 11.45 |
| 100 % | 2,175 | 2.56 lb | 107 W | 2.1 | 74.2 | 10.91 |