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YU13819 multi-rotor motor with KV39

By Yahree Aeropower Tech Co., Ltd. ↗

The YRDRONE YU13819 KV39 is a multirotor propulsion motor measuring 147.5+/-0.1 mm in diameter and weighing 1795+/-18 g. It has recommended 14-24S LiPo power, a 200 A ESC and a 49-inch folding propeller, with specified continuous ratings, a 15-second peak limit and magnet-temperature limits.

Product identityYRDRONE YU13819 multi-rotor motor with KV39
Motor diameter147.5+/-0.1 mm
Motor length50+/-0.3 mm
Slots and poles36N42P
Motor KV39+/-5% RPM/V
Free-load current2.5 A maximumAt 20 V.

Product overview

The YRDRONE YU13819 KV39 is a motor for multirotor propulsion integration. Its body measures 147.5+/-0.1 mm in diameter and 50+/-0.3 mm in length, with a weight of 1795+/-18 g. The KV39 configuration has a speed constant of 39+/-5% RPM/V. Recommended supporting components are a 14-24S LiPo supply, a 14-24S / 200 A ESC and a 49-inch folding propeller. OEM/ODM projects can specify custom KV, appearance and color.

At 100 V, maximum continuous current and power are 120 A and 12000 W, with a temperature of 93°C at maximum continuous current. The higher 180 A / 18000 W rating applies for a maximum of 15 seconds. Magnet operating temperature is limited to 180°C, with 150°C recommended as the maximum. With the 49-inch folding propeller, the 100% throttle entry gives 47012 g thrust at 99.81 V and 84.5 A. Thrust varies with propeller, voltage and test conditions.

Specifications

SpecificationValue & conditions
Product identityYRDRONE YU13819 multi-rotor motor with KV39
Motor diameter147.5+/-0.1 mm
Motor length50+/-0.3 mm
Slots and poles36N42P
Motor KV39+/-5% RPM/V
Free-load current2.5 A maximumAt 20 V.
Phase-to-phase resistance36+/-8% mΩAt 25°C.
Maximum continuous current and power120 A / 12000 WAt 100 V.
Temperature93°CAt maximum continuous current.
Maximum current and power180 A / 18000 WAt 100 V; 15 seconds maximum.
Weight1795+/-18 g
Recommended LiPo cells14-24S
Recommended ESC14-24S / 200 A
Recommended propeller49-inch folding propeller
Maximum magnet operating temperature180°CRecommended maximum: 150°C.
Motor torque constantKt: 2639.9 g.cm/A
Motor constantCn: 0.01 rpm/g.cm
Performance at 30% throttle
  • Voltage: 100.58 V;
  • thrust: 6890 g;
  • current: 5.6 A;
  • power: 565.2596 W;
  • efficiency: 12.19
YU13819 with a 49-inch folding propeller; 30% throttle.
Performance at 40% throttle
  • Voltage: 100.49 V;
  • thrust: 12286 g;
  • current: 12.0 A;
  • power: 1207.8898 W;
  • efficiency: 10.17
YU13819 with a 49-inch folding propeller; 40% throttle.
Performance at 50% throttle
  • Voltage: 100.36 V;
  • thrust: 20564 g;
  • current: 24.6 A;
  • power: 2470.8632 W;
  • efficiency: 8.32
YU13819 with a 49-inch folding propeller; 50% throttle.
Performance at 60% throttle
  • Voltage: 100.23 V;
  • thrust: 26290 g;
  • current: 35.4 A;
  • power: 3543.1305 W;
  • efficiency: 7.42
YU13819 with a 49-inch folding propeller; 60% throttle.
Performance at 70% throttle
  • Voltage: 100.09 V;
  • thrust: 33490 g;
  • current: 50.1 A;
  • power: 5011.5063 W;
  • efficiency: 6.68
YU13819 with a 49-inch folding propeller; 70% throttle.
Performance at 80% throttle
  • Voltage: 99.88 V;
  • thrust: 42874 g;
  • current: 73.2 A;
  • power: 7308.2196 W;
  • efficiency: 5.87
YU13819 with a 49-inch folding propeller; 80% throttle.
Performance at 90% throttle
  • Voltage: 99.8 V;
  • thrust: 46953 g;
  • current: 84.5 A;
  • power: 8433.1 W;
  • efficiency: 5.57
YU13819 with a 49-inch folding propeller; 90% throttle.
Performance at 100% throttle
  • Voltage: 99.81 V;
  • thrust: 47012 g;
  • current: 84.5 A;
  • power: 8437.9374 W;
  • efficiency: 5.57
YU13819 with a 49-inch folding propeller; 100% throttle.
Customization optionsCustom KV, appearance and colorFor OEM/ODM projects.
Thrust performance qualificationThrust varies with propeller, voltage and test conditions.Dependent on propeller, voltage and test conditions.

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