Alex 3115 900KV Brushless Motor for Long-Range FPV & UAV

The Alex 3115 900KV is a 6S brushless outrunner for 10-inch long-range FPV quads and UAV multirotors. Its 31 × 15 mm stator is 5 mm taller than a 3110's, giving more torque for large props; made in India, it weighs 150 g.

Key features

• Up to 1540 W at a 66 A maximum current on 6S
• Tested with a GF1050 (10 × 5 inch) propeller
• 12N14P layout with N52H magnets and 52 mΩ internal resistance
• Rotor dynamically balanced to 5 mg or better; passes 500 V AC hipot and impulse winding tests
• 18 AWG motor leads, 250 mm long

Specifications

• Stator: 3115 (31 × 15 mm)
• KV: 900KV
• Configuration: 12N14P
• Input voltage: 6S LiPo
• Max power: 1540 W
• Max current: 66 A
• Idle current (10 V): 1.6 A
• Internal resistance: 52 mΩ
• Magnets: N52H
• Dynamic balance: ≤5 mg
• Test propeller: GF1050 (10 × 5 inch)
• Leads: 18 AWG, 250 mm
• Motor dimensions: 37 × 45.3 mm
• Weight: 150 g

Sold as a single motor, so order one per arm. The maker pairs it with a 6S 50 A ESC; go larger if you expect to run near the 66 A maximum for long stretches.