Dualsky ECO series brushless outrunner motors cover the RC power market which is less than 900W. ECO is positioning high quality and low price, which is suitable for the beginner and mid-level pilots of fixed wing aircrafts and multi-rotors. ECO series adopt the new naming rule, name the motor according to the stator diameter and the length of the magnet.

Features

• Fashionable packaging design
• Based on the system of CA2, highlighting the price performance
• Designed for airplane model
• Provide rich KV choices and part of the KV is also suitable for multi rotors
• Power ranging from the indoor model to the 50E model planes
• Choose high quality silicon steel sheet material and ball bearing, working stability
• Easy to install in two ways: installation after the fire prevention (the glider) and before fire prevention (aerobatic plane)
• The whole aluminum alloy CNC machining and anodized
• The marks are laser marked, not affect the dynamic balance
• Standard wire length and presoldered plugs
• The accessories include propeller mount, gold plugs, mount and screws

Specification

• RPM/V (KV): 840
• Turns: 13
• Weight: 58g
• Dimensions: 28.8x28.9mm
• Diameter of Shaft: 3.175
• No of Cells: 3S, 4S LiPo
• Slots, Poles: 12N14P
• Idle Current (Io) @ 10V: 0.5
• Max Efficiency Current: 12A
• Max Torque [N*M]: 0.26
• Max Burst Current (15S) [A]: 19
• Max Power (W) [15S]: 304
• Mounting Holes Pitch: 16/16
• Recommended ESC: XC-22 Lite or XC2512BA
• Propeller: 3S: 11x7E, 12x6E/ 4S 9x6E, 10x5E
• Class: 400 size, 400-800g sports airplanes
• Input Connectors: GC3.5
• Ri(mOhm): 140