Airfoil design

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Technology demonstrator: formed from a 1.0 mm steel sheet and featuring integrated, folded reinforcement, the rotor blade was given its final shape with the help of an oil-water mixture. Credit: Fraunhofer IWU F1 Engineering, Wind Turbine Blades, Small Wind Turbine, Rc Plane Plans, Airport Design, Plane Design, Experimental Aircraft, Wind Turbines, Airplane Design

Wind turbines deliver environmentally friendly electricity. Yet the fiber-reinforced plastics often used in very large rotor blades are almost impossible to recycle. Not so with steel blades: since these are composed of steel, their recyclability exceeds 90 percent. Plus they cost significantly less than comparable plastic blades.

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A supercritical airfoil is an airfoil designed, primarily, to delay the onset of wave drag in the transonic speed range. Supercritical airfoils are characterized by their flattened upper surface, highly cambered (curved) aft section, and greater leading edge radius compared with traditional airfoil shapes. Real Magic Wands, Airfoil Design, Experimental Aircraft, Aerospace Engineering, Shock Wave, Aircraft Modeling, Paper Models, Model Airplanes, Spacecraft

A supercritical airfoil is an airfoil designed, primarily, to delay the onset of wave drag in the transonic speed range. Supercritical airfoils are characterized by their flattened upper surface, highly cambered (curved) aft section, and greater leading edge radius compared with traditional airfoil shapes.

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