Designed to be a direct swap out for your 15 size glow engine. This brushless outrunner will provide more power and with its high efficiency, long run times.
A quality motor, built specifically for planes designed to fly with a 15 size glow engine.

Spec.
Battery: 3~4 Cell /11.1~14.8V

RPM: 950kv

Max current: 34A

No load current: 10V/2.0A

Current capacity: 42A/15sec

Internal resistance: 0.03 ohm
Weight: 152g  (not including connectors)
Diameter of shaft: 5mm
Dimensions: 73x35mm

Required; 

45A ESC
3S~4S Li-Po / 8 ~ 12-cell Ni-MH/Ni-Cd
10x6 ~ 13x6.5 prop
Suitable for sport and scale airplanes weighing 36 to 56 ounces (1.02?.59kg).