lehtterasest veetihe pikitala kimmi piirkonnas, ta ühendab põhjaplaadistust tankilaega ja suleb topeltpõhjaga parda poolt
a longitudinal plate which bounds the double bottom at turn of bilge. The lower edge is fitted to the shell; the top edge is flanged over horizontally and riveted to the tank-top plating.
Such protection will be deemed satisfactory if the line of intersection of the outer edge of the margin plate with the bilge plating is not lower at any part than a horizontal plane passing through the point of intersection with the frame line amidships of a transverse diagonal line inclined at 25° to the base line and cutting it at a point one half of the ship’s moulded breadth from the middle line.
