LCF Calculation

[nick_m]

Hi everybody

I am looking for a semi-empirical for the calculation of LCF position of merchant vessels (bulkers, tankers etc), Any idea ????

Many thanks

[Tim B]

LCF is just the centroid of the waterplane area, and on that sort of hullform it's not a complex shape. You can approximate it reasonably with 3 or four trapezia. You should be able to reduce the full set of equations to a single line.

Tim B.

[nick_m]

The problem is that i am constructing a prog, where it calculates several things, I assume that the user knows only some basic ship particulars L, B, T, D, Cb etc,

Many thanks for your reply

[ldigas]

It is not unusual to ask for LCF in input data (for example, as a percentage of some particular length).