Question

A ship of 7200 tonne displacement has KG, 5.20 m, KB, 3.17 m and KMT, 5.35
m. 300 tonne of fuel of Kg, 0.6 m are now used. Ignoring free surface effect,
and assuming that KMT remains constant and that the ship is wall-sided,
calculate:
a. The angle to which the vessel will loll.
b. The distance a 200 tonne mass may be subsequently shifted to obtain
a positive metacentric height of 0.1 m.
c.A ship of 15800 tonne displacement has the following righting levers at the
angles shown:
Angle (º) 0 15 30 45 60 75 90
GZ (m) 0 0.144 0.540 0.835 0.692 0.298 -0.240
Determine its dynamical stability when heeled to 30°.

Answer 1