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  1. 10-05-2018, 23:46 #9
    ChickNorris
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    Quote Originally Posted by newracer View Post
    My son competed in the trebuchet event for Science Olympiad in middle school, finished first in state and ninth in the nation one year.
    That is impressive.
    Do you know if it was tractional or counterweight?

    Post a pic!
    Last edited by ChickNorris; 10-06-2018 at 00:04.
    My airstream has been stolen by dopers
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