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The distinctive whup-whup sound of the UH-1 Iroquois, or "Huey" as it is better known, can be heard for miles. However, its larger brother, the UH-60 Black Hawk, is much quieter. This is partly due to the design of the Black Hawk's rotor blades; all four blades have tips which are swept back twenty degrees, decreasing the size of the rotor tip vortices and reducing the noise of the aircraft.
The worlds first scale narrow injection molded rotor blades for 400-450 class scale models. Produced by high precision injection mold machines. They are factory balanced in high precision scale and thus quality is guaranteed. Rotor blades are made of special flexible plastic with carbon. They are specially designed for rigid rotor head and multi- blade rotor head systems. The flexible plastic material provides special "crash resistance" and also increased stability, due to the flexing capability of the blades.
Length : 330mm
Width : 24mm
Blades grip : 5mm
Screw : 3mm
weight : 32-33g/piece
Airfoil : Symmetrical (reversible)