Power 25 Brushless Outrunner Motor, 870Kv
$97.99
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Power 25 Brushless Outrunner Motor, 870Kv
$97.99
870Kv Rating
Optimized High Torque Speed
Outrunner Design
Direct Drive Output Power
600W Power
Glow Engine Equivalent Performance
14-Pole Stator
Smooth Reliable Brushless Torque
3.5mm Bullets
Pre Installed Bullet Connectors
Reversible Shaft
Flexible Airframe Radial Mounting
Flight Power RedefinedQuiet Efficient Electric Flight Performance
The Power 25 Brushless Outrunner Motor, 870Kv delivers clean, quiet electric power equivalent to a .25-size glow engine for sport and scale RC airplanes weighing 3 to 5.5 pounds. Designed for maximum torque and efficiency, this brushless outrunner motor delivers up to 600 watts of continuous power for 3D aerobatic models and scale aircraft.
High-Torque Airplane PerformanceClean Power For Scale Airplanes
Engineered as a high-torque, direct-drive alternative to brushed or inrunner brushless motors, the Power 25 Brushless Outrunner Motor, 870Kv is a perfect match for sport aircraft such as the Sig Kadet LT-25, Sig Frazer, Lanier Extra 3.25, Global Tequila Sunrise 25, and Great Planes Taylorcraft 20. Featuring a slotted 14-pole outrunner architecture with factory-installed 3.5mm bullet connectors, this motor provides exceptionally smooth throttle response and thermal durability. The heavy-duty hardened steel shaft can be easily reversed for flexible radial mounting options. Pair the Power 25 Brushless Outrunner Motor with a 40–45A brushless ESC and a 3S–4S LiPo battery to experience reliable, low-maintenance electric flight.
Motor SpecificationsDetailed Technical System Metrics
Motor Type
Brushless Outrunner
RPM/Volt (Kv)
870Kv
Motor Design
Outrunner
Outer Diameter
1.4 in (36mm) (ruler)
Shaft Diameter
5mm (.20 in) (ruler)
Idle Current (Io)
2.40A @ 10V
Voltage
11.4 - 16.8V
Bushing Or Bearing
Bearing
Connector Type
3.5mm Bullet
Recommended Prop Range
11x8 to 14x7
Continuous Power
Up to 600W
Recommended Speed Control
40A–45A Brushless ESC
Recommended Battery
3S–4S LiPo or 10–14 cell NiMH
Core InnovationsEngineering Built For Exceptional Reliability
Glow Engine EquivalentDelivers equivalent power to a .25-size glow engine for 3–5.5 lb aircraft
3D Aerobatic PowerIdeal for 15-size 3D airplanes up to 3.5 pounds
High Torque OutputSlotted 14-pole outrunner design for smooth direct-drive torque
Versatile MountingExternal radial rotor design allows motor shaft to be easily reversed
Complete Mounting HardwareIncludes motor mount, prop adapter, and installation hardware
Heavy-Duty ConstructionFitted with dual precision ball bearings and a hardened steel shaft
Quiet & EfficientLightweight operation provides high power output with low noise
Frequently Asked QuestionsEverything you need to know
What electronic speed control (ESC) should I use with the Power 25 Brushless Outrunner Motor, 870Kv?
A 40A to 45A brushless ESC is recommended to safely power the Power 25 Brushless Outrunner Motor, 870Kv.
What propeller size works best with the Power 25 Brushless Outrunner Motor, 870Kv?
The Power 25 Brushless Outrunner Motor, 870Kv performs optimally with propellers ranging from 11x8 to 14x7.
What battery configuration is required for the Power 25 Brushless Outrunner Motor, 870Kv?
You can power the Power 25 Brushless Outrunner Motor, 870Kv using a 3S to 4S LiPo battery or a 10- to 14-cell Ni-MH/Ni-Cd battery pack.
Is the shaft on the Power 25 Brushless Outrunner Motor, 870Kv reversible?
Yes, the external radial rotor design allows the hardened steel shaft on the Power 25 Brushless Outrunner Motor, 870Kv to be reversed for flexible airframe installation.