Air foil Top/bottom distance comparison.
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Description
You know how distances in cad or online don't give you a accurite sence of distance? This hands on model will teach students much better than a plain old video or picture (I know that from experience)
Basic knowledge for the judges: Airfoils are the shape of the cross section of a planes wing, or a wind turbine. They are very complex and are used to manipulate the speed of the air around it to create lift, so that planes can stay in flight or turbines can spin. For more information see the video at bottom of description.
When I was learning about airfoils for science Olympiad I had a hard time understanding what the teacher meant when they would say “the air on the top of the plane has to travel farther that the air on the bottom so there is lift.” This model is made to show that the wind that goes on the top of the airfoil needs to travel faster than the air on the bottom of the airfoil.
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