Co ciekawe jednak, ten typ jednostek był jeszcze w użyciu w 1867 r. (czyli dotrwał do czasów swych nowoczesnych następców - oczywiście w innej części świata) - tak przynajmniej wynika z tego artykułu:
http://en.wikipedia.org/wiki/Kobukson
koreańska wersja: http://ko.wikipedia.org/wiki/%EA%B1%B0% ... 1%EC%84%A0
i bardzo niejasne tłumaczenie fragmentu:
W bibliografii natrafiłem na takę pozycję:* 1606 (39 years ancestors) to it will reach and from the hazard which it supplements the strong point of the jade line which it sells and Turtle Boat and the knife and the window whistling whistling it combined it inserted and 42 personstanding armies which made the window line which it made stired and the jade which it sells they saw with a view to marriage and they were quick far.
* To 1622 the storehousenavy made Turtle Boat again and naval forces it hands down the life when it is a rearrangement.
* To 1687 existing front line 3~4 to reorganize tight and when the position which is with to make by Turtle Boat why being with, it was possible and to make together and the fact that the size becomes larger in order to guard against, the affection Kim possibility clause of zero proposed.
* To 1735 the star military profession wheel will bloom and the this with three to join in this time when it reorganizes Turtle Boat it will burn the shield which is established in the head of a family upstairs of 3 layer structure and it reorganized tightly and it attached ppo Jog it did and and and it bored ease it did it made in good season and and and and wind Rang and and and a musical program in the first and and. This time with it had that model in inside revolving and it made public, it does.
* When also 1751 to recording southeastern Korea germ fine sand well informed on possibility the front line reorganizes every, it comes to be long, it becomes larger and it uses, he which it says but that, to pure providence recording each has 6 muzzles to Turtle Boat right and left but the fact that it will reduce that time there were 8 things and the original broad way they asserted.[ 4 ]
* 1808 favorable condition per asks and in per the former controller against Turtle Boat this it answers, there was Turtle Boat still to the naval forces of tube zero and it will be able to accommodate thousand dawns and when the scull drifting without, the turtle was floating as and tus it was one features and the place where the smoke comes out from the mouth and the nose yet why it was and will reach, the beholder the machine which it catches it surprised and and it reported.[ 5 ]
* It proposed the policyregarding the relocation of Turtle Boat from 1867 Uijongbu.
H. Underwood, Korean Boats and Ships, Seoul 1979.
Być może tam by się jeszcze coś znalazło.
