Extras included: Special Spring Winding tools, Winch winding poles, leveling chocks, ropes and stakes, Trigger hammer, metal horse harness hardware, wheels & axels.
These weapons were the terror of the seige and even held their own against cannon for a time. The Arms was made of a lathe turned logs and a spoon was carved into the end. It was then capped with iron and riveted to its lip.
Rope was used to tightly bind the arm and prevent it from spitting during the violent action. The 'springs' were made of Horse Tail ropes that were wound tight with a hand made ratchet mechanism with one man on each side. to wind it up. The ratchet winding tool doubled as a leveling and aiming tool. IT would be wound once before each battle. and unwound to travel.
The same 2 men would then use the rope winch handles to pull the sprung arm down to the latch mechanism. Once it was latched one of them would unhook the winch from the bottom of the spoon just after the other loaded a rock or sometime dead festering diseased carcass (1st in Biological warfare). The romans used to throw their prisoners 100's of feet over the walls with similar devices. Not so nice people.
This model was derived from a 15th century woodcut. The author took artistic license in building a set of axels and wheels (icluded) that I beleive were strapped to the round notches underneath that appear to have no other function. I beleive that these wheels kept handy between battles and when it was time to move on they simply lashed them to the bottom of tha catapult, unwound the horsehair spring and harnessed it to some oxen or a team of horses.
300868 vertices 416268 (With the wheels and Axels)
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