The boomerang, the ancient hunting and sporting tool of the Aboriginal Australians, is designed to fly in a wide arc and then return to its thrower. A boomerang made of paper is too light to return like this, but if you throw it indoors, it will fly and spin the way traditional boomerangs do. A three-bladed paper boomerang has more stability than a two-bladed one, so make this triple-wing design to give your boomerang more throwing range.
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Things you need
Measure and draw an 8-inch square on a piece of paper. Measure a point 1 inch in from the lower left-hand corner and mark it with the pencil. Measure and mark a point 1 inch in from the lower right-hand corner as well.
Use a protractor to find a 40-degree angle from the lower left-hand point, and draw a line on this angle extending to the middle of the paper. Draw a matching line on a 40-degree angle from the lower right-hand point. The two lines should intersect a little below the centre of the paper.
Measure a point 1 inch above the lower left-hand corner of the square, and another point 1 inch above the lower right-hand corner. Find the midpoint of the top line of the square, and mark a spot a 1/2 inch to its right and left.
Connect the point on the left side of the square with the point to the left of the top centre of the square, again using lines on 40-degree angles. Repeat this with the points on the right side. You should now have three wide "V" shapes, symmetrical along the vertical centre axis of the square, with about an inch of space between them at all points.
Join the open edges of the boomerang in the two bottom corners and the top centre with curves like the letter "C," extending out from the middle of the page. Overlap your "C" curves with the ends of your lines to fit your curves inside the square.
Cut out your three-bladed boomerang. Colour it with markers or decorate it however you like.
Hold your boomerang in front of your face, parallel to the floor so you are looking at its edge, and turn it so one of the blades is facing toward you. Gently bend down the left-hand tip of the blade. Don't fold it all the way.
Repeat the fold on the other two blades. This makes the boomerang aerodynamic and gives it its ability to spin easily in the air.
Tips and warnings
- If you are left-handed, fold the right-hand side of each blade downward.
- For better flight stability, laminate your boomerang or trace your pattern onto cardboard and cut it out with an X-acto knife.
- Only throw this boomerang indoors. It is too lightweight to fly outside.
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