The Tumbler
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5. Reverse fold downward the front 3/5
of the triangle now sticking up in the center.
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6. Without changing any folds, adjust their
ang1es to produce a likeness of this and the next
diagram. - make sure that the "wings" do
not ang1e too much upward or downward,
that the center structure is not too
steep or shallow, etc. Also, make sure
that the "wings" are flat, not warped
by looking at them head on, as in illustration 7.
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7. The ticker tumbler flies by tumbling
over itself along a glide path -
it is a good duration flier, and
can be said to glide, since it has a glide ratio that's greater than 1. In fact
it moves about 2 feet forward
for every foot it drops.
You launch this unusual paper airplane
in an unusual way:
by holding at point "A" in fig.7, with your
index finger above, and thumb and
middle finger below. Quickly but gently "flick" it
forward while at the same time pulling its back end
down, to set it tumbling forward. (There's a knack to this)
Get the launch right, and you've got yourself not just a new flying toy, but
a new kind of flying toy.
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