Overview
The 3115 series is a high-torque, 12N14P long-range motor built for 10-inch FPV drones. It uses N52H-grade magnets and imported 5×11×5 mm bearings for smooth, efficient output and long service life. A robust M5 shaft, 19×19 mm (M3) mounting, and optimized magnetic circuit deliver strong thrust with low vibration—ideal for 10-inch FPV drone cruising, cinematic rigs, and payload-capable builds on 6S.
Key Features
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31 mm stator × 15 mm height (12N14P) for high torque on 9–11″ props; optimized for 10-inch FPV drone setups
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N52H magnets, NSK/NMB 5×11×5 mm bearings for durability and low noise
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6S (25.2 V) operation; typical ESC: 60–80 A depending on KV/prop
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Standard FPV mounting: 19×19 mm, 4×M3; M5 prop shaft with lock-nut
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Factory test chart indicates up to ~4.0 kg peak thrust on suitable 10″ props (lab conditions)
Specifications (Common)
| Item | Spec |
|---|---|
| Stator size | 31×15 mm |
| Configuration | 12N14P |
| Outside diameter | Ø37.5 ± 0.2 mm |
| Body length | 33.6 ± 0.5 mm |
| Shaft | M5, threaded section ~16.8 mm |
| Mount pattern | 19×19 mm, 4×M3 |
| Reference resistance | ~60 mΩ |
| No-load current (25.2 V)* | up to 2.5 A (900KV ref.) |
| Weight | 112 g ± 2 g (motor only) |
| *No-load current varies with KV. |
Variants & Recommended Use
| KV | Suggested Prop (6S) | Typical Role |
|---|---|---|
| 400KV | 10–11″ (bi/tri) with higher pitch | Efficient long-range cruising, low RPM cinematic X8 |
| 900KV | 9–10″ (bi/tri) | Balanced power/efficiency for most 10-inch FPV drone builds |
| 1200KV | 8–9″ or light 10″ (low pitch) | Responsive freestyle/short-range setups on 6S |
Tip: Start with gentle timing and throttle curves; increase prop pitch/diameter cautiously while monitoring current and motor temperature.
What’s in the Box
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3115 Brushless Motor (KV as ordered) ×1
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Prop lock-nut (M5) ×1
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M3 mounting screws ×4
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Prop washer ×1
Compatibility
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6S LiPo systems, 60–80 A ESC (BLHeli_32 / FOC-type acceptable)
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Frames supporting 19×19 mm motor mounts
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9–11″ props; optimized around 10-inch FPV drone builds
Notes
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Performance depends on propeller, ESC tune, and airflow. Always verify current draw on your specific 10-inch FPV drone before full-throttle flight.
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Dimensions and test curves correspond to the factory drawings shown (Ø37.5 mm bell, M5 shaft, 19×19 mm mount).
Details

3115 brushless motor specifications: 900KV, 31mm stator diameter, 12 slots, 14 poles. Weight 112g, length 33.6mm. Includes performance data at various throttle levels, dimensions, and customization options.






3115-900KV motors with 1050 propellers, 2 clockwise and 2 counterclockwise.

400KV motor with 1050 propellers, 2 clockwise and 2 counterclockwise

3115-1200KV motors with 1050 propellers, 2 clockwise and 2 counterclockwise
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