GEPRC EM3115 900KV Motor Review and Specifications for Long-Range FPV Drones

Overview of the GEPRC EM3115 900KV Motor

The GEPRC EM3115 900KV brushless motor is engineered specifically for heavy-lift, long-range FPV drones requiring sustained power, exceptional efficiency, and minimal vibration. Designed for 9-inch to 12-inch propeller compatibility, the EM3115 has become a top-tier choice among endurance drone pilots, cinematographers, and mapping professionals.

Built with ultra-durable materials, a precisely wound stator, and a high-strength titanium alloy shaft, this motor offers stability at high RPMs and maintains consistent thrust throughout extended flights. Its 900KV rating is optimal for 6S–8S LiPo or Li-Ion battery systems, making it perfect for long-range and cinematic builds.

Key Technical Specifications

Specifications

• Model: EM3115 900KV Motor
• Max Watt: 1620W
• Peak current: 65A
• Interphase resistance: 46mΩ
• Propeller: 8-10inch Propeller
• Magnet: N52H
• Bearing type: NSK/NMB
• Configuration: 12N14P
• Dimension: φ37.5mmx30mm
• Shaft Diameter: φ5mm
• Shaft Protruding Length: 16mm
• Mounting holes: 19mmx19mm
• Lead: 310mm/18AWG
• ESC: 60A-80A
• Input Volts: 25.2V（6S LiPo)
• Winding: Single strand copper winding
• Weight: 115g(included wire)
• Suitable for :8-10 inch long range FPV

Includes

1 x EM3115 motor

4 x M3*11 round head screws

1 x M5 anti-slip nut

Use Cases and Application Scenarios

1. Long-Range FPV Missions

Thanks to its optimal torque and efficiency curve, the EM3115 900KV is ideal for long-range FPV drones with high-capacity Li-Ion packs (6S–8S, 4000–6000mAh). It delivers sustained power while conserving energy for flights exceeding 20–30 minutes depending on payload.

2. Heavy-Lift Cinematic Platforms

Compatible with 10–12-inch props, it’s well-suited for carrying gimbals, GoPro, or lightweight mirrorless cameras. The motor’s vibration control and smooth throttle response ensure buttery footage.

3. Mapping and Surveying

With its low vibration output and high reliability, the EM3115 is a reliable choice for GIS and photogrammetry drones flying structured routes with minimal throttle fluctuation.

Build Recommendations

To unlock the full potential of the GEPRC EM3115-900KV motor, pair it with the following components: