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Trapezium Paper Airplane Folding Instructions
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Fold your sheet of A4 paper on diagonal lines as shown on DIG. 1 creasing well.
DIG. 1
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You should get a shape as in DIG. 2.
 DIG. 2
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Open it out to give DIG. 3 and then fold along the dotted line shown.
 DIG. 3
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Push in from the two points labelled A on DIG. 3 to give the shape in DIG. 4.
 DIG. 4
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Now flatten out this form and fold along the dotted lines in DIG. 5.
 DIG. 5
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This should give you the form in DIG. 6. Fold along the dotted line on this. Now you have DIG. 7.
 DIG. 6
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Fold along the two dotted lines on DIG. 7 so that the two flaps meet in the center.
 DIG. 7
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You will be left with the form shown in DIG. 8.
 DIG. 8
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The triangular flap in the center (underneath the two flaps you just produced) should have two pockets. Tuck the flaps produced in step 7 into these pockets as shown in DIG. 9.
 DIG. 9
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You should be left with a piece of paper looking like DIG. 10.
 DIG. 10
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Now turn the plane over and fold along the lines labelled AC and BC in DIG. 10. These folds are very important if you want to produce a plane that flies absolutely level.
 DIG. 11
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See the diagram at the top of the page for what your plane should look like now.
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Trapezium Paper Airplane Flying Lesson
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- This plane flies well indoors but is useless outdoors as the slightest breeze will make it crash. Hold it very near its shorter edge (the front) underneath the plane. Throw with a pushing motion or overarm so that when you let go it will be level or very slightly tilted downwards.
- You should find that this plane will glide very slowly for quite a long distance indoors.
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Stumble It!
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