Abstract
It is nelessary for hatch officer to find list of ship when ship hangs heavy eargo. It is easy and convenient to write the curve of list in advance when ship hangs heavy cargo, if heavy cargo's allowance from ships side designs. (see a, at Fig.I) viz: [numerical formula] Considering ship's motion, [numerical formula] M: Inclining couple θ: List angle [numerical formula] θ_0=M_i/W×GM. Ts: Free rolling period [numerical formula] t_0→0 θ=2θ_0 moxi value t_0→∝ θ=θ_0 mini value at cargo ship, most usual case t_0/Ts=1〜2. and then θmax=1.2θ_0 Now we must have 20% allowance.
