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Transcript

The Polybolos by: Braiden Rauber

Attributes

Since there was no money in these times the cost to make this weapon would just be the raw materials needed to build it which includes wood, bronze, string, feathers and steel. It could fire approximately 10 rounds per minute. It could weigh up to 789kg (1760lbs) or as little as 23kg (50lbs).

Origin

The polybolos was invented by Dionysus of Alexandria a 3rd century greek engineer. It was produced by the greek and roman armies and used for castle sieges.

How it works

There was a wooden magazine over the mensa capable of holding several dozen bolts. The mechanism is different form others in its time because it is driven by a flat-link chain ( Invented by Leonardo da vinci connected to a windlass.

When loading a new bolt, the windlass is rotated counter-clockwise with the trigger claw raised; this drives the mensa forward towards the bow string, where a metal lug pushes the trigger under the trigger claw, which is closed over the string.

Once the string is locked into the trigger mechanism, the windlass is then rotated clockwise, drawing the mensa back, drawing the bow string with it.

A round wooden pole in the bottom of the magazine is rotated down toward the mensa as it is drawn to the back of the polybolos, dropping a single bolt into the slot, ready to be fired. As the mensa is twisted back some more, it meets another lug like the one that locked the string into position. This one pushes the trigger and automatically fires the polybolos, and the process is repeated.

Today's uses

The polybolos was replaced in 1270 by the cannon. It shot arrow, rocks, ect and could shoot objects up to 167lbs or 76kg.

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