조선시대 海船과 江船의 선형특성

Abstract

A name of "Sea Ship " and "River Ship" had been used based on the comprehension for the difference of ship‘s hull form in Chosun period. We can find a number of literature describing the situation which transferred the cargo from Sea Ship to River Ship because Sea Ship could not go upstream in the river of which the current is fast and the water depth is low. The reason why Sea Ship could not go upstream was that the bottom of Sea Ship was narrow, it means the non-flat bottom. Generally Sea Ship had short length, wide breadth, so L/B of 2.2~3.0, and high draft and depth. River Ship has long length, narrow breadth, so L/B of 5.0~6.3, and low draft and the flat bottom in order to adapt to the low water depth of the river.