Board Thread:Suggestions forum/@comment-2601:154:100:45BB:3C89:6E:B77A:C453-20180712172728/@comment-36316824-20180725232107

catapults and trebuchets both use a pulley to load the weapon, it uses a pulley to pull down the arm and load the weapon, it is the same thing except a elevator is moving up and down and is fighting gravity, the catapult only goes down and is fighting a cantilever spring