Our Trebuchet
This is a
picture of the Goose II. Team member, Zach chose the name because when he
was building it, he thought that one of the pieces looked like the head of a goose.
Building the trebuchet went smoothely except for
one problem- the pivot. We couldn't seem to find a dowel large enough to do the
right job. Eventually, we came up with the idea of using the handle of a
shovel. Once cut to size, the new 'dowel' now worked perfectly as the pivot for our
trebuchet.
When we tested the trebuchet, Zach functioned as
the counterweight and pulled the trebuchet back- when released the projectiles
(pieces of concrete) went approximately 300 feet.
Dimensions
of the Goose II
52" tall, not including
the beam
72" wide
62" long
long arm of beam at pivot 66"
short arm of beam at pivot 30"
8"x 18" cloth pouch
two 45" nylon string
When building our trebuchet, we got helps and
hints from the Ingenium, a web page by Kevin Geiselman.
Picture from: www.tasigh.org/ ingenium/pics/smtreb.gif
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