The KMS Quantum 4120/05 O/R Brushless Motor is used for 60-.70 -size glow conversions. It will hover a 5 lb 3D plane and is great for up an 8 lb sport plane.

Specs:

Nearest AXI Equivalent: NA
Diameter: 50 mm
Length: 55.5 mm
Stator Size: 41 x 20 mm
NiCd/NiMH cells: 10-16
LiPo Cells: 3-5
IO Amps: 2.8 (10v)
Turns: 5
KV/RPM: 710
Max Cont Current: 50a
Max Current: 65a/60s
Max Efficiency: >84%
Resistance: 35 mohm
Shaft Dia: 6 mm
Weight: 307 g
Bearings: 3
Poles: 14
ESC Timing Degrees: 20-30 (High)