About the Product

The AT3520 KV550 combines a compact propulsion package with a long 5 mm shaft and a heat-management-focused motor design. The motor uses lateral cooling vents, curved high-torque magnets and a three-bearing arrangement to support stable operation under load.

Key Features

550KV brushless motor
Long-shaft configuration
12N14P motor design
4–6S LiPo operating range
Triple-bearing construction
Lateral cooling vents
High-torque curved magnets
5 mm inner and outer shaft diameter
100 mm enameled-wire lead
Suitable for fixed-wing UAV propulsion
Maximum current: 50A / 180s
Maximum power: 1100W / 180s

Technical Specifications

Specification	AT3520 KV550
Motor Type	Brushless Outrunner
KV Rating	550KV
Configuration	12N14P
Motor Dimensions	Φ43 × 65 mm
Shaft Diameter	IN: 5 mm / OUT: 5 mm
Internal Resistance	31 mΩ
Weight incl. Cable	218 g
Lead	100 mm Enameled Wire
Rated Battery	4–6S LiPo
Idle Current @ 10V	1.1 A
Peak Current / 180s	50 A
Max Power / 180s	1100 W

AT3520 KV550

T Motor AT3520 Long Shaft Fixed Wing Motor KV550