For Sport airplanes up to 14.5lbs (6520g) and 3D airplanes up to
9lbs (4080g)
Designed for explosive acceleration and maximum torque eliminating
the need for a gearbox
Lightened aluminum can houses high torque rare earth Neodymium
magnets
Double shielded bearings
Virtually maintenance-free; no commutators or brushes to wear out
Two year quality guarantee

Great Planes ElectriFly RimFire 1.20 50-65-450 Brushless Outrunner
Electric Motor
Outrunner Motor Mount GPMG1210
Outrunner Prop Adapter GPMQ4909

Brushless Motor-compatible 80A Electronic Speed Control
Propeller: 16x8 - 18x8E

Motor Diameter: 2.0" (50mm)
Motor Length: 2.6" (61.5mm)
Shaft Diameter: .32" (8mm)
Shaft Length: .79" (20mm)
Lead Length: 3" (76mm)
Connectors: Bullet type, .16" (4mm) diameter
Max. Constant Current: 50A
Max. Surge Current: 80A
Max. Constant Watts: 1480W
Burst Watts: 2360W
No Load Current: 2.3A
Input Voltage: 18.5-22.1V (5-6S LiPo)
RPM/V (kV Rating): 450
Weight: 14.1oz (400g)

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