<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (June 2014) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (June 2014) (Learn how and when to remove this template message) </Td> </Tr> <P> The hull is the watertight body of a ship or boat . Above the hull is the superstructure and / or deckhouse, where present . The line where the hull meets the water surface is called the waterline . </P> <P> The structure of the hull varies depending on the vessel type . In a typical modern steel ship, the structure consists of watertight and non-tight decks, major transverse and watertight (and also sometimes non-tight or longitudinal) members called bulkheads, intermediate members such as girders, stringers and webs, and minor members called ordinary transverse frames, frames, or longitudinals, depending on the structural arrangement . The uppermost continuous deck may be called the "upper deck", "weather deck", "spar deck", "main deck", or simply "deck". The particular name given depends on the context--the type of ship or boat, the arrangement, or even where it sails . Not all hulls are decked (for instance a dinghy). </P>

What part of the ship is the hull