Smart Car-Sized Torsion Catapult

A (Mangonel) Siege Onager I constructed as an extra credit project for my ancient history class. It is made out of old wood and some rope. It will chuck almost anything that can fit in the sling. The specs are: 8′x3′ dimensions 1/2″ nylon rope. “Pin” type firing system

25 thoughts on “Smart Car-Sized Torsion Catapult

  1. As i said, the problem can be alleviated by the addition of some steel reinforcement on around the area. But what did you come up with?

  2. I think i figured out a way to eliminate the problem and allow for much more rope to be used, message me if your interested :)

  3. Hello
    I am Brazilian, I would build a catapult here too.You could write down the steps of her?plese.

  4. how far did the bascetball launch, my school is having a pumpkin fling competition and my team and i need sime help, please give some instructions if you can

  5. do you HAVE any blueprints for this catipolt ?? if so pleasemessage me a fb name or em that i can reach you at that would be verry helpful . i have to have one built by october 1st fro a BSA function if posible thank you

  6. that was cool,next you should launch a bowling ball to your next door neighbor.

  7. Im just finishing my prototype of the Torsion catapult can you tell me hwo to make ur swing-arm lock system please it looks effective?? email it to me pixarman@hotmail.co.uk thanks. and nice catapult

  8. Jesus if the thing snapped up with you behind it it wouldn’t be pretty!!

  9. I made it out of scrap wood from a fort that I disassembled. So it was free to me. To buy the materials (rope, wood, fasteners, hardware) would probably cost about $100-$125

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