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The Deltry Paper Airplane
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The Deltry paperairplane is easy to fly, and very easy to make. It flies slowly, and very
smoothly and gently. And it holds together nicely. It's a good bet to become
the standard paper airplane people make, because it's easy and the results
are amazingly good.
Because this is the simplest plane here, and the first, pardon us for
explaining how to create it quite slowly and carefully, so that everyone
can follow along, in twelve very simple steps.
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1. Take an 8 1/2 by 11 inch sheet of paper, and crease it along the
middle, by folding it in half lengthwise along the dashed "valley fold" line shown and unfold again.
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2. After this point, the result of one folding operation
will be shown together with the next folding instructions.
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3. Now fold down the top corners inward to the center crease along the
dashed "valley folds" shown, making two new right-angle triangles visible in
illustration 4.
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4. Fold the large top triangle (made up of the two small triangles you just
created in step 3), over and down.
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5. Fold the lower part of the tip of the large triangle up again. But note -
not quite all the way up to the top.
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6. Leave about 3/8ths of an inch of space from the top. This will help the
flaps to lock under tightly and keep the airplane together when it's done.
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