The APC 9x4.4SFR is a 9×4.4 inch, 2-blade propeller weighing 6.5 g.
| Maker | APC |
|---|---|
| Model | 9x4.4SFR |
| Size | 9×4.4 in |
|---|---|
| Pitch | 4.40 in |
| Blades | 2 |
| Rotation | CCW |
| P/D | 0.49 |
| Weight | 0.01 lb |
| Max RPM | 28,000 |
|---|
| Throttle | RPM | Thrust (lb) | Power (W) | Current (A) | Efficiency (%) | g/W |
|---|---|---|---|---|---|---|
| 30 % | 3,764 | 0.25 lb | 15 W | 0.3 | 39.5 | 7.78 |
| 40 % | 4,920 | 0.44 lb | 25 W | 0.5 | 52 | 8.06 |
| 50 % | 6,054 | 0.67 lb | 38 W | 0.8 | 62.6 | 8.03 |
| 60 % | 7,168 | 0.95 lb | 55 W | 1.1 | 71 | 7.81 |
| 70 % | 8,257 | 1.27 lb | 78 W | 1.6 | 77.1 | 7.43 |
| 80 % | 9,320 | 1.63 lb | 106 W | 2.1 | 80.9 | 6.96 |
| 90 % | 10,353 | 2.03 lb | 143 W | 2.9 | 82.6 | 6.44 |
| 100 % | 10,961 | 2.28 lb | 169 W | 3.4 | 82.8 | 6.11 |