MESA Trebuchet Curriculum Packet
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The MESA trebuchet curriculum includes basic information on the design, physics and math principals behind the trebuchet.

Trebuchet General Concepts and Levers and Pullys
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Click here to download Levers and Pullys >>

Trebuchet Range Calculator provided by Algorithmic Beauty
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The program allows you to compute the range and range efficiency for your design. Input the parameters for the trebuchet, and watch the animation. It allows propped, hinged counterweights, includes the constrained, sliding sling, and gives the range, range efficiency of the design. Various plots and tables allow one to examine the effect of variations in the trebuchet design on the efficiency, range, and forces exerted on the parts of the mechanism.

Global Spec Trebuchet Simulator
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The Grey's Company Trebuchet Page
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Here you'll find a lot of pictures and a few words about these amazing pieces of "leverage artillery" - strange machines referred to variously as trebuchets, traction trebuchets, perriers, petrarias, war wolves, coulliards, bricoles or even "the witch from whose head the ropes hang like hair".

Ripcord's Basic Trebuchet Plans
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The basic trebuchet plans will get you and your students started with the design and construction of simple trebuchet. Please note that the basic plans template does not meet all the specifications (width, height, etc) for the MESA competition. For specific rules and guidelines, refer to the MESA USA National Competition Rules.

The objective is to design a working model of a trebuchet and demonstrate the power of a Class 1 lever.