171.050—Intact stability requirements for a mechanically propelled or a nonself-propelled vessel.
Each vessel must be shown by design calculations to have a metacentric height (GM) in feet (meters) in each condition of loading and operation, that is not less than the value given by the following equation:
where—
N=number of passengers.
W=displacement of the vessel in long (metric) tons.
T=14 degrees or the angle of heel at which the deck edge is first submerged, whichever is less.
b=distance in feet (meters) from the centerline of the vessel to the geometric center of the passenger deck on one side of the centerline.
K=24 passengers/long ton (23.6 passengers/metric ton).