Ancient Engineering
The Atomic Bomb of the Middle Ages

Ballista Plans

Downloadable Ballista Plans

What's included with these plans:

* Detail drawings of all wooden parts.
* Notes on working with wood.
* Detailed assembly instructions with lots of photographs!

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 Greek and Roman Ballista can demonstrate all the principles of the device as best we
know them from what little actual history has survived the ages. How they really worked. How to make
springs out of rope. This is the most accurate of the catapults too! Great for hitting a target.

The completed model is 41 inches long and 24 inches wide (not including the sweep of the arms). It stands
31 inches tall and is capable of hurling a golf ball over 200 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

Tools you will need to make this kit:
- Table saw
- Miter saw or chop saw
- Drill press or power drill
- Screw driver
- Glue
- Clamps
- Scissors
Optional Helpful tools : Router table, Files and Chisel.

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

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 ancient catapults!

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    Price: $6.95
    Minimum age: 10
    Availability: out of stock

    Item code: 92009


Interesting Notes

Some Trebuchet History:

From the 13th century writing: "Itinerarium Peregrinorum et Gesta Regis Ricardi"

In June and July of 1191, Richard the Lionheart (the Duke of Normandy) laid siege to the city of Acre as part of the medieval Crusades.

The Duke concentrated on constructing siege machines and placing trebuchets [petrariae - literally, stone hurler] in suitable places. He arranged for these to shoot continually day and night. He had one excellent one which he called "Bad Neighbor" [Malvoisine]. Its continual bombardment partly destroyed the main city wall and shattered the Cursed Tower. On one side the Templars' trebuchet wreaked impressive devastation, while the Hospitallers trebuchet also never ceased hurling, to the terror of the Turks.

Besides these, there was a trebuchet that had been constructed at general expense, which they called "God's Stone-Thrower". A priest, a man of great probity, always stood next to it preaching and collecting money for its continual repair and for hiring people to gather the stones for its ammunition. This machine at last demolished the wall next to the Cursed Tower for around two perches' Length [11 yards or 10 meters].

The count of Flanders had had a choice trebuchet, which King Richard had after his death, as well as another trebuchet which was not so good. These two constantly bombarded the tower next to a gate which the Turks frequently used, until the tower was half-demolished. Besides these, King Richard had two new ones made with remarkable workmanship and material which would hit the intended target no matter how far off it was. . . . He also had two mangonels [traction trebuchets] prepared. One of these was so swift and violent that its shots reached the inner streets of the city meat market.

King Richard's trebuchets hurled constantly by day and night. It can be firmly stated that one of them killed twelve men with a single stone. That stone was sent for Saladin to see, with messengers who said that the diabolical king of England had brought from Messina, a city he had captured, sea flint and the smoothest stones to punish the Saracens. Nothing could withstand their blows; everything was crushed or reduced to dust.