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$.05 Toy Hovercraft / Helicopter

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This instructable will show you how to make a simple toy hovercraft for small children. It is suitable for daycare projects, science projects (aerodynamics and gyroscopes) as well as general fun. This is a project can be built by small children since it requires no cutting.
 
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Step 1: What you will need.

2 - Styrofoam cups of the same size (8 oz or 16 oz)
8" or 21cm - Masking tape
4 - Medium rubber bands

Step 2: If you build it ... It will fly ...

Take the length of tape and tape the bottom of the cups together. Now loop the rubber bands together drawing the knot closed firmly. Repeat with each rubber band until they form a chain.

Step 3: Here's the wind-up, and the pitch!

Wind the bands around the middle of the cup using medium tightness. Winding it too tight will cause the cups to collapse. I recommend winding over the cups and coming out underneath. This method gives me a better launch, but feel free to experiment.

Step 4: Have fun!

When you are ready to launch, hold the cups between your thumb and index finger with the first digit of your finger inside the loop of the bands.
Next release your thumb and pull your hand away like you would a top. It will hover for a few seconds and slowly descend to the ground.
Timing of the release and pull is important for a good flight. If the first couple of flights don't do so well, keep practicing. You will get the hang of it in no time at all.
This toy can be played with indoors as well as outside. The picture below was of one launched out of a 2nd floor window. Enjoy!
hoohooco10 months ago
wow! it works?
Plo Koon2 years ago
i'll try to make it!
jabujavi2 years ago
Please put a video!
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