HobbyKing AP03 4000kv Brushless Micro Motor (3.1g)

Factory Spec.
Kv: 4000rpm/v
Lipo Range: 1~2S (3.7~7.4V)
Suggested prop: 3020
Max current: 2.5A
Burst current (10sec): 2A
Weight: 3.1g (including mount and wire)
Shaft: 1.5mm
Shaft length: 6mm
Dimensions : 13 x 10mm

Test data:
3020 prop (Recommended)
Voltage: 7.4V
Current: 1.7A
Thrust: 61g

For 30g 3D airplane and 60g normal flying.