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The Little Trebuchet That Could

Birth of BEAST 2

Science of a Trebuchet
Building a Simple Trebuchet
Trebuchet Sketch
Construction Photos
Testing Procedures
Meaurements and Calculations
Beastly Changes and Discoveries
Birth of BEAST 2
beast 3
The Designers

The second attempt...

Beast II was similar to Beast I in that it was a FAT, too.  However, the similarity ended there.  Beast II only had 4 support beams, which were positioned close together.  The tracks for the wheels were also close together, reducing the amount of materials needed.  This time, we used screws instead of nails so we can correct our mistakes fairly easily.  In addition to this, we used twine to secure the support beams.  We tried “pre-stressing” the support beams and tracks to make it stronger.  All of this gave us a much lighter trebuchet and one that looks like it won’t explode on the first launch.  Through testing with the different variables (see testing trebuchet section), we maximized the efficiency of Beast II, which wasn’t that much because it only fired at around 20 meters.  Our performance value (distance / mass and arm length) was way down compared to the other groups in the competition.  Therefore, saying bye-bye to Beast II, we created another beast (get the pun? Eh eh?) in a desperate attempt satisfy Mr.Kap, aka Beast Sr.