"Porta-Treb" - Human Powered Trebuchet - launching softballs and water balloons 70 yards

3,744 views · Published 9 April 2012 · 2:07 · Indexed 9 October 2026

Channel: Tom Heck · 2012 · Education

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Human Powered Trebuchet demo.  Launching softballs 70 yards.  This model folds down and is car-toppable.  Launches softballs, water balloons, apples, etc.  
Details at www.PortaTreb.com
Download build-it-Yourself plans here: https://www.amazon.com/dp/B0BSG2SV1J?ref_=ast_sto_dp

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