T-MOTOR MN3515 Multirotor Fixed Wing UAV Motor KV400

The T-MOTOR Navigator MN3515 KV400 is a brushless motor for multirotor, VTOL and fixed-wing UAVs. Oversized bearings and a self-cooling design support smooth operation and stability. Built in a 12N14P configuration for 4-8S LiPo batteries, it comes with a hardware pack.

T-MOTORDrone motor

Maximum thrust: 3.4 kg
Motor weight: 153 g

Product overview

The T-MOTOR Navigator MN3515 KV400 brushless motor serves multirotor, VTOL and fixed-wing UAV applications. Its construction combines oversized bearings with a self-cooling design for smooth low-speed operation and frame stability under pressure. The bearings are twice the size of those in standard motors. Maximum thrust is 3.4kg, and mean time between failures is approximately 1000 hours. Regular bearing lubrication reduces friction and wear.

The 12N14P motor measures Φ42.5×34.5mm, with a 35mm stator diameter, 15mm stator height and 4mm shaft. Its 600mm cables use AWG 16# wire, bringing weight from 153g excluding cables to 183g including cables. The motor supports 4-8S LiPo batteries, with a maximum continuous current of 30A for 180S and maximum power of 900W for 180S. Idle current is 0.3A at 10v. Each package contains one MN3515 KV400 motor and one hardware pack.

Motors & ESCs

Specifications

T-MOTOR MN3515 Multirotor Fixed Wing UAV Motor KV400 specifications
Specification	Value & conditions
Model	T-MOTOR MN3515 KV400
Motor configuration	12N14P
Internal resistance	116mΩ
Motor dimensions	Φ42.5×34.5mm
Shaft diameter	4mm
Stator height	15mm
Stator diameter	35mm
Cable length	600mm
Cable gauge	AWG 16#
Motor weight	153gExcluding cables.
Motor weight	183gIncluding cables.
Idle current	0.3AAt 10v.
Battery cell count	4-8SLiPo battery.
Maximum continuous current	30A180S duration.
Motor performance	Current: 6.3 A; power: 139.86 W; thrust: 1180 G; speed: 5400 RPM; efficiency: 8.44 G/W 22.2 V; T-MOTOR 14*4.8CF propeller; 65% throttle.
Motor performance	Current: 8.5 A; power: 188.70 W; thrust: 1480 G; speed: 5900 RPM; efficiency: 7.84 G/W 22.2 V; T-MOTOR 14*4.8CF propeller; 75% throttle.
Motor performance	Current: 11.4 A; power: 253.08 W; thrust: 1800 G; speed: 6500 RPM; efficiency: 7.11 G/W 22.2 V; T-MOTOR 14*4.8CF propeller; 85% throttle.
Motor performance	Current: 13.7 A; power: 304.14 W; thrust: 2010 G; speed: 6950 RPM; efficiency: 6.61 G/W 22.2 V; T-MOTOR 14*4.8CF propeller; 100% throttle.
Motor performance	Current: 7.9 A; power: 175.38 W; thrust: 1470 G; speed: 5200 RPM; efficiency: 8.38 G/W 22.2 V; T-MOTOR 15*5CF propeller; 65% throttle.
Motor performance	Current: 11.6 A; power: 257.52 W; thrust: 1880 G; speed: 5700 RPM; efficiency: 7.30 G/W 22.2 V; T-MOTOR 15*5CF propeller; 75% throttle.
Motor performance	Current: 14.5 A; power: 321.90 W; thrust: 2200 G; speed: 6200 RPM; efficiency: 6.83 G/W 22.2 V; T-MOTOR 15*5CF propeller; 85% throttle.
Motor performance	Current: 17.2 A; power: 381.84 W; thrust: 2460 G; speed: 6500 RPM; efficiency: 6.44 G/W 22.2 V; T-MOTOR 15*5CF propeller; 100% throttle.
Motor performance	Current: 9.4 A; power: 208.68 W; thrust: 1730 G; speed: 4850 RPM; efficiency: 8.29 G/W 22.2 V; T-MOTOR 16*5.4CF propeller; 65% throttle.
Maximum power	900W180S duration.
Maximum thrust	3.4kg
Mean time between failures	Approximately 1000 hours
Motor type and applications	Navigator MN3515 KV400 brushless UAV motor
Construction and cooling	Oversized bearings, twice the size of standard motors; self-cooling design; applications include multirotors, VTOL and fixed-wing UAVs
Included equipment	1 × T-MOTOR MN3515 KV400 motor; 1 × hardware pack
Bearing maintenance	Regular bearing lubrication to reduce friction and wear