Jan. 3rd Question Sketch: I always find it easier to see the answer if you can sketch the vessel inclined and plot G acting downward and B acting upward.
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| Figure 7-13 on page 143 of STABILITY AND TRIM FOR THE SHIP'S OFFICER 4th Edition |
Daily License Questions about Ship Stability and Trim: I just think people need to have some knowledge in their heads, professional or otherwise. After 2007 our world has changed due to the advent of Smart Phones. Retaining knowledge is like being able to play a musical instrument, if you do not use it you will lose it! The questions I post with will hopefully help you keep what you already know or remind you of what you should know. William E. George
To sketch GZ the trick is not to draw the vessel upright. If the vessel is upright with no angle of heel or list then GZ = 0 because there is no horizontal distance between the upward force of B and the downward force of G. It may be helpful for the student to make a template of a midships section so that it is easier to sketch at different angle of inclination.
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