T-Motor Velox V3115 3-12S Cinematic FPV Motor

The T-Motor Velox V3115 is a 31 mm-stator motor for 8-11 inch X4 and X8 cinematic and cinelifter drones carrying heavy camera payloads. T-Motor rates it for 3-12S, and it comes in 400KV, 640KV, 900KV and 1050KV windings at about 113 g each.

Key features

• Active heat dissipation: the cooling-led design keeps the motor running cooler on long, heavy flights.
• Electrophoretic iron core: T-Motor's first, it resists corrosion when flying in humid conditions.
• Smooth and durable: imported NMB bearings and high-temperature-resistant coils.
• 5 mm shaft in and out for M5-mount cinelifter props.
• KV to prop matching: 400KV and 640KV run 9.5-10.5 inch tri-blades, 900KV 9-10.5 inch and 1050KV 8.5-10 inch.

Specifications

• Rated voltage: 3-12S LiPo
• KV options: 400, 640, 900, 1050
• Configuration: 12N14P
• Motor size: Φ37.2 × 51.1 mm
• Weight: 112.7-113.4 g incl. cable
• Shaft: 5 mm in / 5 mm out
• Leads: 18AWG × 250 mm
• Peak current (10 s): 41 A (400KV), 62 A (640KV), 83 A (900KV), 83.6 A (1050KV)
• Max power (10 s): 1982 W (400KV), 1927 W (640KV), 1894 W (900KV), 1903 W (1050KV)
• Internal resistance: 145.38 / 67.13 / 38.08 / 33.84 mΩ (400 / 640 / 900 / 1050KV)

Prop rpm is roughly KV × pack voltage, so pick a lower KV for higher cell counts and bigger props, and a higher KV for lower-voltage packs. One motor is supplied per order.