Product overview
The YAHREE YU13819 KV39 is a propulsion motor for multi-rotor UAV integration. Its 36-slot, 42-pole architecture has a diameter of 147.5 ± 0.1 mm, a length of 50 ± 0.3 mm and a weight of 1795 ± 18 g. The KV39 version has a speed constant of 39 rpm/V ± 5%. Recommended integration equipment comprises a 14–24S LiPo battery, a 14–24S / 200 A ESC and a 49-inch folding propeller. These are equipment recommendations rather than a specified package of included accessories.
Electrical sizing distinguishes continuous operation from short peak demand: the motor is rated at 120 A / 12000 W continuously at 100 V, with 180 A / 18000 W allowed for a maximum of 15 seconds. Temperature at maximum continuous current is 93°C. The magnets have a maximum operating temperature of 180°C, with 150°C recommended as the upper limit. With the 49-inch folding propeller, full-throttle thrust is 47012 g at 99.81 V and 84.5 A. Thrust depends on propeller, voltage and test conditions; OEM/ODM projects can specify custom KV, appearance and color.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity and purpose | YAHREE YU13819 KV39 multi-rotor motor |
| Motor diameter | 147.5 ± 0.1 mm |
| Motor length | 50 ± 0.3 mm |
| Slots and poles | 36N42P |
| Motor speed constant | 39 rpm/V ± 5% |
| No-load current | 2.5 A maximumAt 20 V. |
| Phase-to-phase resistance | 36 mΩ ± 8%At 25°C. |
| Maximum continuous current and power | 120 A / 12000 WAt 100 V. |
| Motor temperature | 93°CAt maximum continuous current. |
| Maximum current and power | 180 A / 18000 WAt 100 V; 15 seconds maximum. |
| Motor weight | 1795 ± 18 g |
| Recommended LiPo battery | 14–24S |
| Recommended ESC | 14–24S / 200 A |
| Recommended propeller | 49-inch folding propeller |
| Maximum magnet operating temperature | 180°CRecommended maximum: 150°C. |
| Torque constant | Kt: 2639.9 g·cm/A |
| Motor constant | Cn: 0.01 rpm/g·cm |
| Performance at 30% throttle |
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| 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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| Customization options | Custom KV, appearance and colorOEM/ODM projects. |
| Thrust performance dependency | Thrust varies with propeller, voltage and test conditions.Propeller, voltage and test conditions. |
