User projects

Check out these trebuchets that people built and see how they compare to the simulation results on VirtualTrebuchet.


Both of my two older kids are in high school physics and I decided that we needed real work application of concepts. So we built a 10’ throwing arm trebuchet. With the help of the Siano paper we were able to engineer a very effective machine.
Actual distance 300 feet
91.4 meters
Simulated distance 316.6 feet
96.5 meters
VirtualTrebuchet overestimated the actual distance by 5.5%.
Link to simulation

This website was one of the best things that helped with my trebuchet. I had built a trebuchet but without the help of this website, it probably would have turned out horrible. Thanks to whoever the designer of this website may be.
Actual distance 100 feet
30.5 meters
Simulated distance 71.5 feet
21.8 meters
VirtualTrebuchet underestimated the actual distance by 28.5%.
Link to simulation

Medium sized trebuchet w/ ~300lb counterweight launching gourds. I optimized some of the dimensions using this site, and I was happy to see that we were able to get relatively accurate results when we were doing some test firing.
Actual distance 112 feet
34.1 meters
Simulated distance 120.1 feet
36.6 meters
VirtualTrebuchet overestimated the actual distance by 7.2%.
Link to simulation

We were interested what type of Trebuchet a High School Makerspace could create with Qubits. Here is the first test results.
Actual distance 20 feet
6.1 meters
Simulated distance 25.3 feet
7.7 meters
VirtualTrebuchet overestimated the actual distance by 26.3%.
Link to simulation
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Link to save this trebuchet

Welcome to

VirtualTrebuchet 2.0

VirtualTrebuchet is a web based trebuchet simulator that will allow you to quickly evaluate different trebuchet configurations.

  1. To begin, enter the parameters of your trebuchet in the input boxes.
  2. Next, press the "Simulate" button located under the inputs.
  3. Finally, watch your trebuchet go.

Any questions? Read the documentation or contact us.