Great Planes Rimfire 250 Outrunner Brushless Motor

Tower Stock# LXXJW4  •  Manufacturer Stock# GPMG4502
Great Planes Rimfire 250 Outrunner Brushless Motor (large view)
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Notes from our tech department:
This is the Great Planes ElectriFly RimFire
28-13-1750 Brushless Outrunner Electric Motor.


For 3D airplanes up to 5oz (140g) and sport airplanes up to 8oz
Designed for explosive acceleration and maximum torque
Lightened aluminum can houses high torque rare earth Neodymium
Double shielded bearings
Better cooling means 50% more power than many other Outrunners of
similar size
Virtually maintenance-free; no commutators or brushes to wear out
Two year quality guarantee through manufacturer beginning at date of


Great Planes ElectriFly RimFire 28-13-1750 Brushless Outrunner
Electric Motor with leads, 2mm male and female connectors, motor
mount, two O-rings, prop saver adapter and instruction sheet


Speed Control for Brushless Motors such as the ElectriFly Silver
Series 8 (GPMM1800)
3mm Prop Adapter if using a spinner
Slow Fly Propeller


Motor Diameter: 1.1" (28mm)
Motor Length: 0.51" (13mm)
Shaft Diameter: 3mm
Kv Rating: 1750RPM/V
Weight: .71oz (20g)
Input Voltage: 7.4-11.1V (2-3S LiPo)
Constant Watts: 90
Burst Watts: 120
Suggested Prop Sizes: 7x6 - 8x4 slow fly


If 3mm Prop Adapters are needed order;
GPMQ4930 3mm Set Screw Type
GPMQ4959 3mm Collet Type

The three-number designation refers to Motor Diameter, Motor Length
and Kv Rating.

jxs 9/11/09

See Tower Catalog page 68.
Parts Compatibility
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