Wujing Zongyao
The "Wujing Zongyao" divides Chinese warships into six categories: Tower ships ("lou chuan"), combat or war junks ("dou xian" or "zhan xian"), covered swoopers ("meng chong"), flying barques ("zou ge"), patrol boats ("you ting"), and sea hawk ships ("hai hu"). The "Wujing Zongyao"'s typology for classifying Chinese warships would reappear in later naval texts for many centuries.