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Turtle Ship
The claim that iron cladding on the turtle ship is controversial is a personal opinion that is not referenced.  Under WK:A such personal opinions are inappropriate and the text of the article should accurately reflect what the referenced source actually states. The main article that is the source for all the Korean and Japanese quotations on turtle ship's iron cladding comes from Prof. Park/Pak/Bak's article in some SNU journal.  If you read the article, you'll see that the article doesn't mention anything about a supposed ""controversy"" but rather assumes iron cladding on the turtle ship.  Please check the references yourself if you're interested. "