Yun Ti (雲梯)

Drawing of a Yun Ti, from 'Wu Bei Yao Lue (《武備要略》'.

Yun Ti (雲梯, lit. 'Clour ladder') is also one of the 'Classic Trio' of Chinese siege engine. It is a wheeled wagon with a foldable scaling ladder.

Unlike Chong Che (衝車), the basic design of Yun Ti changed very little. Only the lower part of the wagon is modified to accommodate three Wei Yuan Pao (威遠砲) and one Da Jiang Jun Pao (大將軍砲).