PlanetCraft and Planet of Cubes Forum

The Mangonel

This is the catapult that most people call a "catapult" 

I think it should have a 1-35 block range and Emerald says it has a 100 durability. This catapult is Emeralds idea not mine.

Ballistas

Are catapults that fire a large object at an enemy. It has a 1-35 block range. Its like a huge crossbow and has 115 durability

Trebutchet

I dont really know how it works but i do know its like a Mangonel and has a long arm with a string holding a bucket or sand bag.

So I just copied online 

The Trebuchet was designed for max power and distance. The Trebuchet has a long arm that is balanced on a fulcrum and a short arm attached to a counterbalance. A sling was attached to the end of the long arm and then a rope was attached to the long arm and pulled down until the counterbalance is high in the air. The rope is then released and the counterbalance plummets down. The energy provided by the long arm brings to swing the short arm and when the long arm comes to a stop the projectile continues with the velocity. - Credit to Nicolas Duronio's Catapult Project 

A trebutchet

Heres another trebutchet