This analysis mode is used to compute the maximum compartment lengths based on user-specified equilibrium criteria. Floodable Lengths may be computed for a range of displacements; the LCG may be specified directly or calculated from a specified initial trim. In addition a range of permeabilities may be specified. The VCG is also required to ensure accurate balance of the CG against the CB at high angles of trim. As well as the standard deck edge and margin line immersion criteria (one of which must be specified) the user can also add criteria for maximum trim angle and minimum required values of longitudinal and transverse metacentric height.

Floodable Length Analysis Requirements

§   Range of displacements to be analysed

§   VCG

§   Range of permeabilities to be analysed

§   Trim (free- to- trim to either initial trim or specified LCG)

§   Floodable length criteria to be tested

§   Margin line and deck edge (required for criteria)

Floodable Length Analysis Options

§   Fluid Densities

§   Wave form

§   Hog and sag

The output is in the form of tabulated Floodable Lengths for each displacement and permeability. The data is tabulated for each of the stations as defined in Maxsurf. The data is also presented graphically.

For more detailed information please see Floodable Length on page 81.