The 4320 is a high-power brushless motor typically used in FPV racing or long-range drones with 5.5-inch to 7-inch propellers. The high kV of the 4320 motor provides incredible thrust and speed to 5.5-inch or 6-inch “X-Class” racing drones. It’s not designed for beginners or typical 5-inch drones, but rather for advanced riders seeking extreme endurance or raw power.
| Specification | |
| Motor Size: | 50.5 x 43mm |
| Shaft Diameter: | 5.0mm |
| Motor Mount: | 30*30mm(M4*4) |
| Configuration: | 12N14P |
| Motor Cable: | 16#AWG 600mm |
| FA4320KV 350KV Motor | |
| Max thrust：9560g | |
| Volts：29V~44V(6S~12S) | |
| Suggested ESC: 100A~120A | |
| Maximum Power：4650W | |
| Suggested Prop: HQ1309-3R, HQ1308-3R prop | |
| ltem No. | Prop | Throttle | Volts (V) | Amps(A) | Watts | Speed | Thrust | Efficiency | Operating |
| (W) | (RPM) | (g) | (g/W) | temperature(℃) | |||||
| FA4320 350KV | HQ1309-3R | 50% | 25 | 4.1 | 102.5 | 3904 | 863 | 8.42 | 34.4℃ |
| 60% | 25 | 6.7 | 167.5 | 4651 | 1239 | 7.4 | |||
| 70% | 25 | 10.3 | 257.5 | 5402 | 1792 | 6.96 | |||
| 80% | 25 | 15 | 375 | 6122 | 2170 | 5.79 | |||
| 90% | 25 | 20.2 | 505 | 6817 | 2680 | 5.31 | |||
| 100% | 25 | 53.5 | 1337.5 | 7464 | 3211 | 2.4 | |||
| FA4320 350KV | HQ1309-3R | 50% | 34 | 7 | 238 | 5225 | 1550 | 6.51 | 38.3℃ |
| 60% | 34 | 11.6 | 394.4 | 6191 | 2231 | 5.66 | |||
| 70% | 34 | 17 | 578 | 7070 | 2864 | 4.96 | |||
| 80% | 34 | 24.1 | 819.4 | 7969 | 3616 | 4.41 | |||
| 90% | 34 | 33.5 | 1139 | 8835 | 4465 | 3.92 | |||
| 100% | 34 | 43.7 | 14858 | 9648 | 5346 | 3.6 |
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