Catapults could be moved by wheels or by people carrying parts of it and then putting it together.
catapult
you make a catapult!
A catapult is typically moved using a lever mechanism that is activated by pulling back a large arm or beam. This arm is connected to a tension source, such as twisted ropes, springs, or counterweights, which stores potential energy. When released, the arm swings forward, launching the projectile. In some designs, wheels or tracks may also be used to transport the catapult itself.
Catapult is a noun.
A Trebuchet Catapult
where was the catapult used
A mangonel is a kind of catapult.
A mangonel is a catapult, not a bridge.
Who invented the rocket Catapult
how did you incresed the accuacy of your catapult
They used the catapult for war.
Owen designed a new catapult for the navy to use on its aircraft carriers. Lady Taylor Smith