Mighty Roman Onager Plans

Downloadable Mangonel Plans!

What's included with these plans:

* Detail drawings of all wooden parts.
* Notes on scaling and working with wood.
* Detailed assembly instructions with lots of photographs
* Web links for more information on history, physics and more!

These plans are available in downloadable PDF format only. The download instructions will be emailed to you on receipt of payment.

This model of the Roman Mangonel can demonstrate all the principles of the device as best we know them from what little actual history has survived the ages. Is this how they really worked? Was it equipped with a sling, or a spoon on the end of the arm? Which one is more efficient? More accurate? More fun? Now you can be the judge!

The finished model stands 16" long, 12" high and 8" wide. When properly assembled it is capable of tossing golf balls over 50 feet! (Or more, depending on how you construct and tune it.)

The detailed instructions are complete with diagrams, photos, tuning tips and web links for even more information about catapults!

It's a great science experiment, and a great model just to have fun with for a different kind of target practice.

Tools you will need to make this kit:
- Table saw
- Miter saw or chop saw
- Drill press
- Screw driver
- Glue
- Clamps
- Scissors

Designed by catapult and trebuchet expert Ron Toms, this machine is easy to assemble, and it really works!

We've put a lot of time and effort into making this plan as easy and complete as possible. It's a great way to learn about catapults!