The APC 21x13.5EPN is a 21×13.5 inch, 2-blade propeller weighing 118.1 g.
| Maker | APC |
|---|---|
| Model | 21x13.5EPN |
| Size | 21×13.5 in |
|---|---|
| Pitch | 13.50 in |
| Blades | 2 |
| Rotation | CCW |
| P/D | 0.64 |
| Weight | 0.26 lb |
| Max RPM | 11,000 |
|---|
| Throttle | RPM | Thrust (lb) | Power (W) | Current (A) | Efficiency (%) | g/W |
|---|---|---|---|---|---|---|
| 30 % | 770 | 0.30 lb | 9 W | 0.2 | 45.9 | 16.18 |
| 40 % | 999 | 0.53 lb | 15 W | 0.3 | 56.5 | 16.02 |
| 50 % | 1,221 | 0.80 lb | 24 W | 0.5 | 63.8 | 15.21 |
| 60 % | 1,436 | 1.12 lb | 36 W | 0.7 | 68.5 | 14.19 |
| 70 % | 1,644 | 1.49 lb | 51 W | 1 | 71.6 | 13.14 |
| 80 % | 1,847 | 1.89 lb | 71 W | 1.4 | 73.2 | 12.14 |
| 90 % | 2,042 | 2.33 lb | 95 W | 1.9 | 73.9 | 11.18 |
| 100 % | 2,157 | 2.61 lb | 111 W | 2.2 | 73.9 | 10.64 |