E-Flite Power 25 Brushless Outrunner Motor, 870Kv

• Equivalent to a 25-size glow engine for sport and scale airplanes weighing 3-5.5 lb (1.4-2.5 kg)
• Ideal for 15-size 3D airplanes up to 3.5 pounds (1.6 kilograms)
• Ideal for models requiring up to 600 watts of power
• High-torque, direct-drive alternative to inrunner brushless motors
• Includes mount, prop adapter and mounting hardware
• External radial rotor design-6mm shaft can easily be reversed for alternative motor installations
• Slotted 14-pole outrunner design
• High-quality construction with ball bearings and hardened steel shaft
• Quite, lightweight operation

Overview
The Power 25 is designed to deliver clean and quiet power for 25-size glow engine for sport and scale airplanes weighing 3 to 5.5 pounds (1.4 to 2.5 kilograms), 15-size 3D airplanes up to 3.5 pounds (1.6 kilograms), or models requiring up to 600 watts of power. It's an especially good match for 4- to 5-pound scale airplanes on the market and models such as the Sig Kadet LT-25, Sig Frazer, Lanier Extra 3.25, Global Tequila Sunrise 25 and Great Planes Taylorcraft 20.

Specifications
Type: Brushless outrunner
Size: Replacement for 25-size glow engine
Bearings or Bushings: One 5 x 14 x 5mm Bearing, and Two 5 x 11 x 4mm Bearings
Wire Gauge: 14
Recommended Prop Range: 11x8 to 14x7
Voltage: 12–16.8
RPM/Volt (Kv): 870
Resistance (Ri): .03 ohms
Idle Current (Io): 2.40A @ 10V
Continuous Current: 32A
Maximum Burst Current: 44A (15 sec)
Cells: 3S-4S Li-Po or 10–14 Ni-MH/Ni-Cd
Speed Control: 40–45A brushless
Weight: 190 g (6.7 oz)
Overall Diameter: 35mm (1.40 in)
Shaft Diameter: 5mm (.20 in)
Overall Length: 54mm (2.10 in)

You will need
40-45A brushless ESC
3S-4S Li-Po or 10- to 14-cell Ni-MH/Ni-Cd
11x8 to 14x7 prop