How can I make an airfoil?

Answer

You can make an airfoil using a piece of notebook paper and a book. Place the paper between two pages of the book, leaving one end of paper hanging out. Close the book. When you direct air over the top of the paper, it rises upward, illustrating lift.

Move air over your airfoil by blowing on it or by moving the book quickly through the air. Either way, you see the paper rise. This is due to the shape of the airfoil. This airfoil is simple, but it uses the same principles employed in making airplane wings and propellers.

When air is in motion, some passes over the top of the airfoil, and some passes under the bottom. Because of its shape, as air passes above and below an airfoil, the air at the top speeds up, which decreases the air pressure in that area. The air below maintains a constant speed, and so has a higher pressure. This pressure differential illustrates Bernoulli's principle. As air moves more quickly, there is a greater difference in air pressure. When the differential is high enough, lift is achieved, and the piece of notebook paper  or the wing of an airplane  rises into the air.

Q&A Related to "How can I make an airfoil?"
1. Lay your piece of construction paper on a flat surface. 2. Fold the paper in half along the 8-inch side but don't crease it. 3. Tape the two edges together with scotch tape. Ensure
http://www.ehow.com/how_8691904_make-paper-airfoil...
Any object that is reasonably long and flat will become an airfoil when it is tilted upwards (given a positive angle of attack) and moved forwards with respect to the surrounding
http://answers.yahoo.com/question/index?qid=201102...
By taking a normal piece of paper and fold it by half but don't flatten it and tape the open edge with 2 pieces of adhesive tape.
http://wiki.answers.com/Q/How_do_you_make_an_airfo...
Part of building your own model aircraft is developing not only your knowledge of flight principles but an intuitive "feeling" for what will work and what won't. Constructing
http://www.ehow.co.uk/how_8463778_make-airfoil.htm...
1 Additional Answer
Ask.com Answer for: make an airfoil
How to Make an Airfoil
Part of building your own model aircraft is developing not only your knowledge of flight principles but an intuitive "feeling" for what will work and what won't. Constructing the wing, or airfoil, of your aircraft is probably the trickiest task for an... More »
Difficulty: Moderate
Source: www.ehow.com
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