43*65mm
12N14P
220℃
5mm
218g
＞1000h
| AT3520 Basic Data | |
| Parameter:Long Shaft KV550 | Maximum Power (180s):1300W/1100W |
| Motor Dimensions:43*65mm | Phase-to-phase Internal Resistance:31m/20m/14m |
| Lead Specification:100mm | Slot/Pole:12N14P |
| Shaft Diameter:5mm | Rated Operating Voltage (Lipo):4-6S |
| No-load Current (10V):1.1A/1.6A/2.0A | Maximum Current (180s):50A/70A/70A |
| Maximum Continuous Power:250W/302W/284W | |
| MODEL | KV Value | maximum power | Maximum current | pull | Efficiency | Applicable blades | Number of batteries | Adapt to electric adjustment | |
| BGS-FW3520 | KV | W | A | g | g/W | / | S | A | |
| 550 | 767.14 | 34.89 | 3575 | 4.66 | APC13*6.5 | 6 | 40 | ||
| 550 | 966.63 | 44.28 | 4116 | 4.26 | APC14*7 | 6 | 40 | ||
| 720 | 1037.58 | 58.90 | 3624 | 3.49 | APC13*8 | 5 | 40 | ||
| 720 | 1098.29 | 62.58 | 4316 | 3.93 | APC14*7 | 5 | 40 | ||
| 850 | 787.29 | 54.65 | 3515 | 4.46 | APC13*6.5 | 3 | 40 | ||
| 850 | 942.71 | 66.32 | 3854 | 4.09 | APC14*7 | 4 | 40 | ||
| Model | accelerator | Voltage | Pulling Force | Torque | Current | speed | Power | Efficiency | Motor temperature |
| BGS-FW3520 KV550 APC13*6.5 | % | V | g | N.m | A | rpm | W | g/W | ℃ |
| 40.% | 22.49 | 912 | 0.162 | 4.96 | 4834 | 111.61 | 8.18 | 41 | |
| 45.% | 22.47 | 1053 | 0.187 | 6.00 | 5181 | 134.81 | 7.81 | ||
| 50.% | 22.45 | 1208 | 0.215 | 7.26 | 5558 | 163.08 | 7.41 | ||
| 55.% | 22.43 | 1396 | 0.249 | 8.88 | 5990 | 199.17 | 7.01 | ||
| 60.% | 22.39 | 1619 | 0.290 | 10.87 | 6404 | 243.44 | 6.65 | ||
| 65.% | 22.35 | 1890 | 0.340 | 13.47 | 6895 | 300.90 | 6.28 | ||
| 70.% | 22.30 | 2140 | 0.386 | 16.12 | 7313 | 359.46 | 5.95 | ||
| 75.% | 22.25 | 2412 | 0.438 | 19.27 | 7732 | 428.67 | 5.63 | ||
| 80.% | 22.19 | 2711 | 0.494 | 22.60 | 8119 | 501.48 | 5.41 | ||
| 90.% | 22.06 | 3289 | 0.607 | 30.77 | 8940 | 678.62 | 4.85 | ||
| 100.% | 21.99 | 3575 | 0.667 | 34.89 | 9252 | 767.14 | 4.66 | ||
| BGS-FW3520 KV550 APC14*7 | 40.% | 22.49 | 973 | 0.185 | 5.15 | 4423 | 115.79 | 8.40 | 59 |
| 45.% | 22.46 | 1169 | 0.224 | 6.71 | 4888 | 150.66 | 7.76 | ||
| 50.% | 22.43 | 1408 | 0.268 | 8.50 | 5313 | 190.74 | 7.38 | ||
| 55.% | 22.37 | 1689 | 0.326 | 11.18 | 5785 | 250.13 | 6.75 | ||
| 60.% | 22.34 | 1954 | 0.380 | 13.70 | 6192 | 305.98 | 6.39 | ||
| 65.% | 22.29 | 2247 | 0.440 | 16.90 | 6664 | 376.75 | 5.96 | ||
| 70.% | 22.23 | 2529 | 0.498 | 20.26 | 7056 | 450.36 | 5.62 | ||
| 75.% | 22.16 | 2863 | 0.570 | 24.56 | 7454 | 544.30 | 5.26 | ||
| 80.% | 22.08 | 3216 | 0.646 | 29.20 | 7818 | 644.83 | 4.99 | ||
| 90.% | 21.93 | 3787 | 0.776 | 38.47 | 8481 | 843.54 | 4.49 | ||
| 100.% | 21.83 | 4116 | 0.854 | 44.28 | 8762 | 966.63 | 4.26 | ||
| BGS-FW3520 KV720 APC13*8 | 40.% | 18.47 | 1004 | 0.194 | 7.46 | 4880 | 137.74 | 7.29 | 54 |
| 45.% | 18.43 | 1194 | 0.231 | 9.41 | 5303 | 173.40 | 6.88 | ||
| 50.% | 18.39 | 1428 | 0.277 | 11.90 | 5750 | 218.85 | 6.52 | ||
| 55.% | 18.34 | 1658 | 0.324 | 14.91 | 6237 | 273.44 | 6.06 | ||
| 60.% | 18.28 | 1954 | 0.383 | 18.61 | 6657 | 340.07 | 5.75 | ||
| 65.% | 18.20 | 2249 | 0.443 | 23.12 | 7162 | 420.93 | 5.34 | ||
| 70.% | 18.15 | 2524 | 0.500 | 27.05 | 7548 | 490.94 | 5.14 | ||
| 75.% | 18.06 | 2768 | 0.552 | 31.85 | 7918 | 575.15 | 4.81 | ||
| 80.% | 17.96 | 3045 | 0.621 | 37.82 | 8315 | 679.25 | 4.48 | ||
| 90.% | 17.74 | 3539 | 0.771 | 51.47 | 8977 | 912.96 | 3.88 | ||
| 100.% | 17.62 | 3624 | 0.845 | 58.90 | 9211 | 1037.58 | 3.49 | ||
| BGS-FW3520 KV720 APC14*7 | 40.% | 18.46 | 1076 | 0.204 | 7.55 | 4685 | 139.36 | 7.72 | 72 |
| 45.% | 18.42 | 1332 | 0.254 | 9.99 | 5164 | 183.99 | 7.24 | ||
| 50.% | 18.37 | 1583 | 0.304 | 12.95 | 5657 | 237.94 | 6.65 | ||
| 55.% | 18.31 | 1881 | 0.364 | 16.51 | 6123 | 302.23 | 6.22 | ||
| 60.% | 18.24 | 2185 | 0.426 | 20.52 | 6565 | 374.31 | 5.84 | ||
| 65.% | 18.16 | 2526 | 0.493 | 25.43 | 7020 | 461.78 | 5.47 | ||
| 70.% | 18.08 | 2817 | 0.552 | 30.14 | 7380 | 544.91 | 5.17 | ||
| 75.% | 17.99 | 3101 | 0.614 | 35.37 | 7754 | 636.40 | 4.87 | ||
| 80.% | 17.88 | 3457 | 0.693 | 42.17 | 8130 | 754.01 | 4.58 | ||
| 90.% | 17.66 | 4072 | 0.832 | 55.71 | 8756 | 984.06 | 4.14 | ||
| 100.% | 17.55 | 4316 | 0.892 | 62.58 | 9014 | 1098.29 | 3.93 | ||
| BGS-FW3520 KV850 APC13*6.5 | 40.% | 15.16 | 953 | 0.170 | 8.34 | 5001 | 126.54 | 7.53 | 43 |
| 45.% | 15.13 | 1106 | 0.198 | 10.19 | 5364 | 154.22 | 7.17 | ||
| 50.% | 15.10 | 1280 | 0.229 | 12.09 | 5735 | 182.64 | 7.01 | ||
| 55.% | 15.05 | 1494 | 0.267 | 15.18 | 6168 | 228.48 | 6.54 | ||
| 60.% | 14.99 | 1732 | 0.312 | 18.54 | 6583 | 278.01 | 6.23 | ||
| 65.% | 14.92 | 2008 | 0.361 | 22.90 | 7073 | 341.70 | 5.88 | ||
| 70.% | 14.87 | 2200 | 0.397 | 26.29 | 7402 | 390.84 | 5.63 | ||
| 75.% | 14.79 | 2457 | 0.446 | 30.91 | 7816 | 457.12 | 5.38 | ||
| 80.% | 14.71 | 2696 | 0.492 | 35.89 | 8189 | 527.89 | 5.11 | ||
| 90.% | 14.52 | 3191 | 0.591 | 47.53 | 8938 | 690.19 | 4.62 | ||
| 100.% | 14.41 | 3515 | 0.654 | 54.65 | 9187 | 787.29 | 4.46 | ||
| BGS-FW3520 KV850 APC14*7 | 40.% | 15.15 | 1021 | 0.196 | 8.87 | 4578 | 134.38 | 7.60 | 61 |
| 45.% | 15.12 | 1214 | 0.233 | 11.11 | 4937 | 167.90 | 7.23 | ||
| 50.% | 15.06 | 1468 | 0.282 | 14.47 | 5432 | 217.85 | 6.74 | ||
| 55.% | 14.99 | 1785 | 0.347 | 18.96 | 5928 | 284.08 | 6.28 | ||
| 60.% | 14.92 | 2033 | 0.395 | 23.03 | 6323 | 343.56 | 5.92 | ||
| 65.% | 14.83 | 2323 | 0.457 | 28.29 | 6746 | 419.61 | 5.54 | ||
| 70.% | 14.75 | 2570 | 0.507 | 33.09 | 7071 | 488.18 | 5.26 | ||
| 75.% | 14.65 | 2852 | 0.568 | 39.24 | 7435 | 574.99 | 4.96 | ||
| 80.% | 14.56 | 3111 | 0.624 | 45.23 | 7743 | 658.44 | 4.73 | ||
| 90.% | 14.34 | 3607 | 0.737 | 58.48 | 8318 | 838.83 | 4.30 | ||
| 100.% | 14.22 | 3854 | 0.797 | 66.32 | 8598 | 942.71 | 4.09 |
The 3520 Brushless Outrunner Motor is engineered for medium and large fixed-wing UAVs, delivering powerful thrust, high efficiency, and stable performance for demanding flight missions. Available in 550KV, 720KV, and 850KV (customizable), it provides up to 4.3 kg of maximum thrust when paired with the recommended propeller and ESC. Optimized for 4–6S LiPo battery systems, the motor features a high-efficiency magnetic circuit, precision-balanced rotor, and premium bearings to ensure smooth operation, low vibration, and extended service life. Ideal for fixed-wing drones, VTOL UAVs, mapping aircraft, surveillance platforms, long-range FPV aircraft, and industrial UAV applications. Custom KV ratings, shaft dimensions, cable length, and mounting configurations are available to meet OEM and ODM requirements.
Compared with multirotor aircraft, fixed-wing UAVs typically operate for longer durations, fly over greater distances, and maintain higher cruising speeds. These mission profiles place greater demands on propulsion efficiency and continuous power output. BGS motors are optimized to operate efficiently across a wide RPM range, helping improve flight endurance while maintaining stable performance throughout extended missions.
Each motor is manufactured using high-grade permanent magnets, precision CNC-machined aluminum components, premium bearings, and high-temperature copper windings. The lightweight yet robust structure reduces overall aircraft weight while ensuring excellent mechanical strength and vibration resistance, even under continuous high-load operation.
Our fixed-wing UAV motors are compatible with various propeller sizes, ESC configurations, and battery systems, allowing seamless integration into different aircraft platforms. Whether used in hand-launched UAVs, VTOL fixed-wing aircraft, mapping drones, surveillance systems, environmental monitoring platforms, or long-range logistics UAVs, they deliver dependable propulsion and smooth flight characteristics.
To meet diverse project requirements, BGS also offers OEM and ODM customization services, including KV value adjustment, shaft configuration, mounting dimensions, winding optimization, waterproof protection, and other application-specific modifications. Every motor undergoes rigorous quality inspection and dynamic balancing before shipment to ensure consistent performance, low vibration, and reliable operation in demanding environments.
Built for efficiency, durability, and precision, BGS fixed-wing UAV motors provide a dependable propulsion solution for next-generation autonomous and industrial UAV applications.
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