Pair Of N50 Dc Motor With Propellers 3.7v Aircraft

This is a pair of CW and CCW N50 DC motor with blade 3.7V High-speed  High torque Aircraft Glider 

Specifications:

Rated voltage 3.7V to 5V
No-load current 450mA
With slurry current 2.8A
No-load speed 40000 rpm
Thrust: Approx 10g (3.7v-4.2v), 13g (5v)
a pair of motors containing pulp weight 25g