weight to work it. This machine projected a 50 lb. cannon-ball 200 yards, but was so lightly constructed that its full power could not be safely applied. In a book on 'Experimental Philosophy,' by J. T. Desaguliers, 1734, a curious and interesting old work on mechanical effects, the author gives detailed calculation of the power of a trebuchet, together with plans of the engine as constructed from the writings of Vitruvius.

These drawings are, however, inaccurate, and though Desaguliers' conclusions are exact, he only allows the trebuchet a counterpoise of 2,000 Lbs

Trebuchet Plans >> Stirling Trebuchet Plans $12.95 FREE Shipping

Trebuchet Plans Build a classic hinged counterweight trebuchet with TrebuchetStore.com Trebuchet Plans and Instructions. Once complete, this magnificent Highland Trebuchet stands over 36 inches tall and will throw a scale projectile up to 80 feet. Professional Design Professionally engineered with an open counterweight cabinet, the Highland Trebuchet allows you to vary the weight for range and trajectory adjustment. Fire with an empty counterweight for indoor use, or add weight for increased power and range. Great Project The Highland Trebuchet is perfect for demonstrating medieval warfare and technology and the physics of leverage, ballistics and projectile motion. Trebuchets and catapults make great science and history projects. Easy to Build All TrebuchetStore.com trebuchet plans use 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 straightforward design requires no complicated layout or joinery. TrebuchetStore.com trebuchet and catapult plans come complete with: Parts Shopping List Measured Drawings for all parts Assembly Drawings Step by step Assembly Instructions Step by step Firing and Tuning Instructions How a Trebuchet Works All the information you need to complete your project quickly and easily. Want to know how to build a trebuchet ? TrebuchetStore.com Plans and Instructions take the mystery out of trebuchet design and construction. More Trebuchet Plans Medieval Trebuchet Golf Ball Trebuchet Tennis Ball Trebuchet daVinci Trebuchet

This book contains professionally designed, step-by-step plans and instructions for building three working model catapults:

The Stone Throwing Ballista, da Vinci's Spring Catapult and The Highland Trebuchet using parts and materials available from your local home center, or hardware store.

The straightforward designs require no complicated layout or joinery and include:

• A Complete Parts and Materials Shopping List
• Measured Drawings and Dimensions for All Individual Parts
• Step-by-Step Assembly Drawings
• Step-by-Step Assembly Instructions
• Detailed Construction Notes
• Step-by-Step Firing and Tuning Instructions
• A Photo of the Completed Catapult

$75.00 FREE Shipping U.S. Orders Only

Unlike the flimsy, snap together plywood trebuchet kits, our all hardwood trebuchet kit does not require additional cutting, trimming or shaping.

Requires only white carpenter's glue and a few bar clamps (not included) to assemble.

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• Materials Shopping List
• Complete Parts List
• Measured Drawings for All Parts
• Step-By-Step Assembly Drawings 
• Construction Details and Notes
• How a Trebuchet Works
• Illustrated Firing Instructions
• Illustrated Tuning Instructions
• Picture of the Completed Trebuchet

$299.00 FREE Shipping U.S. Orders Only

Individually crafted from cabinet-grade red oak, the da Vinci Trebuchet stands 14 inches tall in the cocked position, 24 inches tall in the fired position and will hurl a projectile up to 60 feet. Includes six projectiles and fully illustrated instructions.

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