Build your own Roman Mangonel with these detailed, easy to follow plans and  instructions. When built, this Catapult stands 10"  inches tall  in the fired position and will throw a scale projectile up to 40 feet.

The predecessor to the sling equipped Onager, the Mangonel could throw huge stones and clusters of rocks, baked in clay over walls and into enemy fortifications. 

This easy to build classic catapult model uses common, inexpensive and easy to find building materials, all available at your local home improvement store. 

This complete plans package includes a shopping list of materials,  measured drawings and dimensions for all parts, step-by-step assembly drawings and instructions, as well as firing and tuning instructions.