HY25-151B 4D Propellers w/BL Motor(4mm shaft)

Fly backwards or decelerate during a dive. 3D and 4D planes.
Includes necessary parts for assembling a electric variable and reverse pitch propeller

Fly backwards or decelerate during a dive. 3D and 4D planes.
Includes necessary parts for assembling a electric variable and reverse pitch propeller

This easy to install unit will enable you to reverse the pitch of your brushless motor IN FLIGHT! The list of possible manuevers is endless! The unit includes 2 10″ blades and outrunner motor, and the variable pitch assemble. You will need a servo to control the pitch assembly.

Spec.
Motor: D3123-1600kv
Voltage: 11.1v
Weight: (About) 50g
Prop Size:7″8″9″10″ (included)