| ''Kaisen'' were typically around thirty meters long and eight meters wide, with a main mast roughly thirty meters in height. They were of a nearly identical design to Chinese junks plying the same waters. | | ''Kaisen'' were typically around thirty meters long and eight meters wide, with a main mast roughly thirty meters in height. They were of a nearly identical design to Chinese junks plying the same waters. |
| + | When serving as ''shinkôsen'' or ''sekkôsen'' and journeying between Ryûkyû and China, these ships occasionally faced the threat of pirates, and so were well-armed. For example, in [[1796]], a ''sekkôsen'' was attacked by three pirate ships while on the return journey from China; the Ryukyuans returned fire, and were able to make it safely back to Ryûkyû.<ref>Ono Masako, Tomita Chinatsu, Kanna Keiko, Taguchi Kei, "Shiryô shôkai Kishi Akimasa bunko Satsuyû kikô," ''Shiryôhenshûshitsu kiyô'' 31 (2006), 217.</ref> |
| The sails, like those of ''[[sabani]]'' (Okinawan fishing canoes), were made in a manner closely related to that used in China. Thin slats of bamboo were interwoven to form a six-sided lattice, a pattern or method known in Japanese as ''mutsume ami'' (六つ目編み). Branches, leaves, or grasses were then interwoven into the lattice to form a relatively solid sheet which could catch the wind.<ref>Yamagata, “Ushinawareta Ryûkyû-sen,” 42.</ref> As in traditional Chinese "junks," the sails were held up not just by one or two static standing crossbars (as in European sailing ships), but rather by a series of numerous bamboo cross-bars which were raised and lowered as part of the sail. | | The sails, like those of ''[[sabani]]'' (Okinawan fishing canoes), were made in a manner closely related to that used in China. Thin slats of bamboo were interwoven to form a six-sided lattice, a pattern or method known in Japanese as ''mutsume ami'' (六つ目編み). Branches, leaves, or grasses were then interwoven into the lattice to form a relatively solid sheet which could catch the wind.<ref>Yamagata, “Ushinawareta Ryûkyû-sen,” 42.</ref> As in traditional Chinese "junks," the sails were held up not just by one or two static standing crossbars (as in European sailing ships), but rather by a series of numerous bamboo cross-bars which were raised and lowered as part of the sail. |