What else does it give me? The area under this curve gives me the volume of displacement
and the moment, if I take the moment of this curve about any point, then I will get where the
lcb of the section is, of the ship is- at loaded line, this is the at loaded line. What does this
curve show me? It tells me that a portion of the ship’s length from here to here is constant, is
giving constant sectional area therefore, the section is constant. So, this is what we call
parallel middle body and this I call entrance and this I call run.