The KMS Quantum 4120/06 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: 4120/14
Diameter: 50 mm
Length: 55.5 mm
Stator Size: 41 x 20 mm
NiCd/NiMH cells: 12-16
LiPo Cells: 4-5
IO Amps: 2.0 (10v)
Turns: 6
KV/RPM: 610
Max Cont Current: 40a
Max Current: 60a/60s
Max Efficiency: >86%
Resistance: 43 mohm
Shaft Dia: 6 mm
Weight: 304 g
Bearings: 3
Poles: 14
ESC Timing Degrees: 20-30 (High)