Dualsky XM4255EA-6 Brushless Outrunner Motor
The Dualsky XM4255EA-6 is a premium-quality brushless outrunner designed for medium to large electric aircraft. With its efficient 42 mm stator, robust construction and smooth operation, this motor is an excellent choice for aerobatic, sport and scale models in the 2.5 to 4.0 kg weight range.
Delivering over 1 kW of peak power, the XM4255EA-6 provides outstanding thrust while maintaining excellent efficiency and low operating temperatures. It is particularly well suited for 6S LiPo applications where lower current draw and longer flight times are desired.
Whether you're flying a precision aerobatic aircraft, a classic warbird or a large sport model, the XM4255EA-6 offers the perfect balance of power, reliability and efficiency.
Technical Specifications
SpecificationValueMotor TypeBrushless OutrunnerModelDualsky XM4255EA-6KV Rating590 KVStator Size42 × 55 mmMotor Diameter42 mmMotor Length49 mmWeight251 gShaft Diameter6 mmMounting Pattern25 × 25 mm (4 × M3)Internal Resistance18 mΩNo-load Current (10V)2.9 AMaximum Current (15 sec.)62 APeak Power1,142 WRecommended ESC80–100 ARecommended Battery4S–6S LiPo*
*When using a 6S LiPo, select the propeller carefully and verify the current draw with a wattmeter before flight.
Recommended Propellers
BatteryTypical Propeller
- 4S LiPo : 15 × 6
- 5S LiPo : 14 × 6
- 6S LiPo : 14 × 7 or 13 × 8*
*Final propeller selection depends on the aircraft, flying style and measured current.
Key Features
- High-efficiency brushless outrunner design
- Precision balanced rotor for smooth operation
- Lightweight yet robust aluminium construction
- High torque for larger propellers
- Ideal for sport, scale and aerobatic aircraft
- Excellent choice for 6S power systems
- Reliable performance with low operating temperatures
Typical Applications
The Dualsky XM4255EA-6 is ideal for:
- 50–60 size sport aircraft
- Scale models
- Pattern and aerobatic aircraft
- Warbirds
- Aircraft weighing approximately 2.5–4.0 kg
For a 3 kg aerobatic model, this motor paired with a 6S 4000–5000 mAh LiPo, an 80–100 A ESC, and a 14×7 or 15×8 propeller delivers an outstanding combination of power, efficiency and long flight times, making it an excellent upgrade over many standard 4S power systems.
