My Stability Report shows a downflooding/margine line angle as ‘EXPOSED’. What does it mean ?
A downflooding angle is ‘EXPOSED’ to starboard or port when the corresponding downflooding point never gets submerged as the ship heels from 0 to +180 degrees or 0 to -180 degrees respectively. This also applies to margin line points, in both intact and damage stability. For example, if a downflooding point on the starboard side of a vessel has a relatively low freeboard and the vessel itself has enough buoyancy above the downflooding point height, then it is likely to be ‘EXPOSED’ to port. 3.17 My vessel’s equilibrium list angle is zero. However, in the Intact Stability Report the waterline at zero degrees heel and the equilibrium draught do not agree. The two values do not necessarily match, as they may be calculated from different vertical datums depending on the vessel’s setup. Waterlines are measured from Z=0 whereas the equilibrium draught is measured from the draught marks datum line, ie line through the set draught marks. Please see an unmodified testhull file, where the two ve
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