Enter the distance from the ground to the bottom tangent of the vessel. If you are performing a leg analysis, this distance should be equal to the length of the legs. This value will be used along with the tangent-to-tangent length to determine the centroid where the wind loads and seismic shear loads are applied. These horizontal shear forces cause bending around the legs and support lugs.
A Vessel on Legs
A Vessel on Lugs
