●Suitable for ALIGN E1 / G1. ●Carbon Fiber Material. ●Suitable for ALIGN G1 Three-Blade Rotor Head, Must with HQ1200A(E1) / HQ1200B(G1). ●830 Carbon Fiber Main Blades are specially designed for professional agricultural helicopter. 830mm total length and semi-symmetrical airfoil design offer optimal buoyancy for heavy payload flight. Moreover, its super lightweight and rigidity features that can effectively improve the torsion resistance during heavy payload flight also save power output. | ●Shape:Semi-Symmetrical airfoil ●Length:830x65x8.3mm ●Thickness:14mm ●Shaft Diameter:5mm ●Weight:Approx. 780g/set |