Q: Can MOSES be used to compute the air gap for a structure?
REV 6.02

A: Yes, MOSES can compute the air gap for any structure. You need to compute time domain motions for the vessel, and then post process the results using the POINTS command. You will need to define the point on the vessel where you want to measure the air gap, and use VLIST to show the available variables. The wave clearance is the variable you want, and you will probably want to obtain statistics of the wave clearance over the time history, to illustrate the maximum and minimum values. You can also compute the air gap in the frequency domain, using ST_CLEARANCE.