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Daily Question for April 12, 2018

The amount of freeboard which a ship possesses has a tremendous effect on its __________.

A. initial stability

B. free surface

C. permeability

D. stability at large angles of inclination

Comments

  1. Frederico ManchadoApril 12, 2018 at 3:47 AM

    D. stability at large angles of inclination

    If the freeboard at large angles of inclination is too little, the ship is more subjected to have water passing through its main deck and it's the same effect of loading cargo in a high KG. Then It will cause a decrease in GM. A free surface effect will also occur since the "loaded cargo" is a fluid, decreasing your GM even more.

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  2. Friends of STABILITY AND TRIM FOR THE SHIP'S OFFICERApril 12, 2018 at 10:56 PM

    Freeboard has no effect on initial stability, free surface effect or permeability. It does affect the vessel's righting arm. GZ, because the vessel can heel over to larger angles before it gets its deck edge is immersed. So the larger the freeboard the larger the GZ!

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