Product overview
The YRDRONE JT3520 KV750 is a brushless propulsion motor for large outdoor fixed-wing aircraft and VTOL UAVs. Its 12-slot, 14-pole architecture has a speed constant of 750+/-5% RPM/V. The motor measures 43+/-0.10 mm in diameter and 43+/-0.5 mm in length, with a weight of 213+/-15 g. Lateral cooling vents and a semi-box heat dissipation structure manage heat. Aircraft-grade materials, triple-bearing support, a C-Clip and a shaft collar form its mechanical construction, while a long shaft, embossed propeller adapter and cover plate provide the propeller interface.
Integration recommendations include 14S LiPo batteries and 13~14 inch propellers. The electrical recommendations differ: the technical specifications give a 6S/100A ESC, while the compatibility recommendation gives 110A. Current and power ratings are 52 A/1154.4 W continuous and 75 A/1665 W for a maximum of 15 seconds, both labeled at 44.4 V. Thrust depends on propeller, voltage and test conditions; with the 1470 propeller at full throttle, the figures are 4130 g at 17.5 V, drawing 63.8 A and 1116.5 W. Custom KV, appearance and color options are available for OEM/ODM projects.
Specifications
| Specification | Value & conditions |
|---|---|
| Brand and model | YRDRONE JT3520 KV750 brushless motor |
| Application and maximum thrust | Large outdoor fixed-wing aircraft and VTOL UAVs; up to 4.1 kg thrustThrust varies by propeller, voltage and test conditions. |
| Motor diameter | 43+/-0.10 mm |
| Motor length | 43+/-0.5 mm |
| Slots and poles | 12N14P |
| Motor speed constant | 750+/-5% RPM/V |
| Free-load current | 3.0 A maximumAt 20 V. |
| Phase-to-phase resistance | 18.4+/-7% mΩAt 25°C. |
| Maximum continuous current and power | 52 A / 1154.4 WAt 44.4 V. |
| Temperature at maximum continuous current | 87°CAt maximum continuous current. |
| Maximum current and power | 75 A / 1665 WAt 44.4 V; 15 seconds maximum. |
| Motor weight | 213+/-15 g |
| Recommended LiPo cells | 14S |
| ESC recommendation in technical specifications | 6S/ 100A |
| Recommended propeller | 13~14 inch |
| Magnet operating temperature | Maximum 150°C; recommended maximum 120°C |
| Motor torque constant | Kt: 159.41 g.cm/A |
| Motor constant | Cn: 0.56 rpm/g.cm |
| Performance at 40% throttle |
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| Performance at 50% throttle |
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| Performance at 60% throttle |
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| Performance at 70% throttle |
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| Performance at 80% throttle |
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| Performance at 90% throttle |
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| Performance at 100% throttle |
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| Magnets and performance improvement | High-temperature-resistant arc magnets; over 5% performance improvement compared to standard models |
| Cooling and mechanical construction | Lateral cooling vents; semi-box heat dissipation structure; aircraft-grade materials; triple-bearing support; anti-stripping design with C-Clip and shaft collar |
| Propeller interface and shaft | Embossed propeller adapter, cover plate and long shaft |
| Compatibility recommendations | 14S LiPo batteries; 13-14 inch propellers; 110A ESC; takeoff weight 1800 to 2000gActual takeoff weight may vary. |
| Customization options | Custom KV, appearance and colorFor OEM/ODM projects. |
