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Go over the material under the Teacher Text so that each of the
students has some understanding of how the airfoil (wing) of the airplane
operates.
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Make one wind tunnel with the classroom. Take the dozen one-quart
cardboard milk cartons and cut off both ends on each carton. Glue all 12
together, four across (making three stories). Secure with duct tape with
two long strips.
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Decide as a class if you want to make your own model airplanes or
purchase a few plastic ones.
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Next, turn on the electric fan and place in front of the wind tunnel.
Hold a plane on the end of a string behind the wind tunnel. Does the
wind current create a lift? (You can adjust the elevators on the tail
assembly so the airplane will climb) What is the position of the
elevators in a nose dive?
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Have the students write up a one page report on the experiment with
the wind tunnel and model airplanes and how the air currents affect the
lift, turning, rolling, and dive of a plane.
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