Build your own working model medieval trebuchet with these detailed, easy to follow plans and instructions. When built, this beautiful Stirling Trebuchet stands over 32 inches tall in the fired position and will throw a scale projectile up to 80 feet.

Engineered with an open counterweight cabinet, the Stirling trebuchet allows you to vary the weight for range and trajectory adjustment. Fire with an empty counterweight for indoor use, or add weight (nuts, bolts, scrap lead, iron or steel, sand, or small rocks) for increased range.

Uses common, inexpensive and easy to find building materials, available at your local hardware store or home center. Basic woodworking skills and tools are required, but the straight forward design requires no complicated layout or joinery. Perfect for demonstrating medieval warfare and technology and the physics of leverage and projectile motion.

This siege engine plans package includes a complete shopping list of