To make the helicopter, use a ruler to draw
the dashed lines and solid lines onto your
piece of paper as shown in the pattern.
The dashed lines are fold lines, and the
solid lines are cutting lines. First, cut
along the solid lines on your piece of paper.
Then, complete the following folding steps.
Fold A and B away from you.
Fold C toward E, on the dashed line.
Fold D so it overlaps C
Fold E in toward the centre of your paper.
Place the paper clip over the fold at E.
Now you are ready to make a test flight.
Hold your paper helicopter so that E is
toward the ground. Start by holding the
helicopter above your head and letting it
drop. Then try it from higher places. Make
some test flights with the paper clip off.
Does this have any effect?