QA 058 :
Can GHS calculate the ground reactions when ground points are defined
and initial ground reactions are not ?
Yes. You do not need to know what the initial ground reactions are.
You can use zero, or a guess. If the given initial reactions are
less than required to support the vessel, it will "settle down"
until the required reactions develop. This will increase the draft
somewhat, but since the ground is usually quite stiff relative to
the water, the increase in draft may not be significant. If you
want to refine the solution, observe the final reactions and then
plug them in as the initial reactions and solve again.