Louchuan

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Louchuan (traditional Chinese: 樓船; simplified Chinese: 楼船; pinyin: lóuchuán; lit. 'tower ships') were a type of Chinese naval vessels, primarily a floating fortress, which have seen use since the Han dynasty. Meant to be a central vessel in the fleet, the louchuan was equipped for boarding and attacking enemy vessels, as well as with siege weapons including traction trebuchets for ranged combat.^[1]