Looks can be deceiving. This outrunner is around twice the size of a towerpro bell motor, and swings a much larger prop. Its the motor used on some of Art-techs new plane kits, which is testiment to its durability, ease of use and quality.

Spec.
Required Voltage: 11.1v
Max current draw: 35A
Max power: 500W
No Load Current: 1.2A
Shaft: M4 (perfectly suited to Towerpor/GWS SF Slow Fly props)
Weight: 115g
Diameter: 41mm
Overall length: 66mm
Kv: 1000rpm/v
Comes with mount as shown in Image

Prop Test
Prop Size             Voltage   Ampere   Thrust
11x9 three blade    11.1V     20A        1200g