Description：

       Suitable for 420 helicopter model. The new airfoil is designed for intense 3D flight with flexibility and stability. The unique rigid forming technology greatly improves the rotor's resistance to distortion, prevents unstable air disturbance at the wing tip, and reduces the blades sound and power loss.

Parameter：

LENGTH长度：420mm（安装孔到翼尖）

GRIP桨根厚度：≥5mm

WIDTH旋翼宽度：34-36mm

HOLE孔位：3mm（安装孔位直径）

AIRFOIL机翼：SYMMETRICAL对称

Specification：

Main Blade 420MM×1 Pair