●Use for T-REX 550E Helicopter
●The 520 3G main blades are designed specifically for extreme 3D flying, featuring both high agility and excellent stability characteristics. The blades' have brand new airfoil design, coupled with new painted graphics. In addition, the blades rigidity have been increased for better anti-torsion characteristics during flight. The new airfoil design effectively minimizes turbulence at the blade tips, reducing blade noise and power loss.
●Shape: Symmetrical airfoil