Fei Lun Jia Hai Zhou (飛輪架海舟) and Tao Chuan Zi Mu Lun Zhou Chuan (套船子母輪舟船) (Patreon)

Fei Lun Jia Hai Zhou (飛輪架海舟, lit. 'Flying wheel sea-rack ship')

Fei Lun Jia Hai Zhou is a warship of unusual design, possibly a Ming-era throwback to older paddle wheel warships from the previous dynasties (as hinted by its tower ship-style crenellated superstructure). Intended as a capital-class warship despite its moderate size, Fei Lun Jia Hai Zhou is made of expensive and durable nanmu wood and comes with two masts, four inboard paddle wheels and twelve large oars. In addition, it also has two large slots at the bow and stern, which allow two ships to be connected together via wooden beams into a catamaran-like configuration for increased stability.

Tao Chuan Zi Mu Lun Zhou Chuan (套船子母輪舟船, lit. 'Ship-sheathing mother and child wheeled ship')

Tao Chuan Zi Mu Lun Zhou Chuan is actually not a different ship design, but a detachable exterior shell/auxiliary armour equipped by Fei Lun Jia Hai Zhou. Made of Chinese fir, the exterior shell encloses the warship from the front and flanks, and comes with a bow fitted with barbed spikes and storage space filled with gunpowder and flammable materials. Beside protecting the warship from grounding hazards, the exterior shell is also a potent weapon in its own right, allowing the warship to ram into enemy ship, ignite the payload, then discard the shell to disengage.