- If you want to study how helicopter wings work, then a great addition to your project could be large, carefully constructed examples of various helicopter wing designs. These can be made of cardboard, along with other materials. If you pay close attention to scale and have several different examples, they can create an excellent display.
You also could create several different types of smaller helicopter wings and drop them from different heights to see how well they perform. You may even want to compare helicopter wings to another type of flying device, such as a blimp or airplane, to see how well they fare against gravity. These kinds of experiments allow you to ask questions that can lead to basic concepts of helicopter design, such as "Will longer blades increase performance?" and "Will broader wings help the helicopter stay in the air longer?"
If you want to create an even more detailed examination, you could look at how the helicopter's blades are turned using the gear mechanisms. This requires you to experiment with paper and cardboard blades and to include other devices, but the result can be truly impressive if you can develop a crank to turn the blades in the same way a helicopter works. - When designing your helicopter blades, attention to detail is very important. Creating a replica that is correct according to scale and angles, at least in some ways, will allow you to explore accurately how a helicopter works. This also involves making helicopters with the correct weight, which could require some creative thinking on your part. You may be able to use extra pieces of cardboard or paper to construct a frame for the blades that resembles a real helicopter (depending on design) in terms of weight disbursement; it could even be central to your project. Because glue and tape have weights of their own, they can off-balance your construction unless you are careful.
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