Hacker A40-10S V4G 8 Pole 1600 RPM/V 6.7:1 247g Geared Outrunner
Description
The Hacker A40-10S V4G 8 Pole 1600 RPM/V 6.7:1 Geared Outrunner is a powerful, high-efficiency brushless motor designed for larger electric gliders with flying weights of approximately 4 to 8 kg.Combining Hacker's proven 8-pole A40-S outrunner with a robust 6.7:1 planetary gearbox, this drive system delivers the high torque needed to turn large propellers efficiently. The gearbox reduces the motor's high rotational speed, allowing the use of propellers up to 23 inches in diameter for excellent thrust and climbing performance.With a maximum short-duration power rating of 1500 W, the A40-10S V4G provides ample power for demanding electric soaring applications. Its carefully matched motor and gearbox offer smooth operation, high efficiency and dependable performance, even under heavy loads.
| Hacker A40-10S V4G 8 Pole Specifications | |
|---|---|
| Maximum power (15 seconds) | 1500 W |
| Motor type | 8-pole brushless outrunner |
| Number of turns | 10 |
| Kv (without gearbox) | 1600 RPM/V |
| Kv (including gearbox) | 239 RPM/V |
| Gear ratio | 6.7:1 |
| No-load current (I0) at 8.4 V | 2.75 A |
| Internal resistance (Ri) | 12 mOhm |
| Recommended ESC timing | 15°- 20° |
| Recommended ESC switching frequency | 8 kHz |
| Recommended ESC rating | 70 - 100 A |
| Maximum propeller diameter | 23 inches |
| Weight | 247 g |
| Overall length | 74 mm |
| Motor diameter | 41.7 mm |
| Output shaft diameter | 6 mm |
| Powertrain Recommendation | |
|---|---|
| Motor | Hacker A40-10S V4G 8 Pole 1600 RPM/V 6.7:1 |
| Spinner | 42mm GM SL Scale Spinner, 6mm Split Collet for GM Spinners |
| 6S LiPo prop | GM 22x14 Scale Folding Prop |
| ESC | Dualsky SUMMIT 100 Light |
| Battery | 6S 3 Ah - 6 Ah LiPo (choose capacity for correct CG) |
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