A ship of 10000 tonnes displacement has GM 0.5m. Calculate the moment of statical stability when the ship is heeled 7(3/4) degrees.

 A ship of 10000 tonnes displacement has GM 0.5m. Calculate the moment of statical stability when the ship is heeled 7(3/4) degrees.

Reference: Ship Stability for Masters & Mates (6^th edition), Exercise – 15.1

Solution:

Moment of statistical stability = W*GZ

                                                 = W * GM*Sin θ

                                                 = 10000 * 0.5 * sin (31/4)⁰

                                                 = 674.25 ton-m