Step 1: Gathering info

So step 1 is to be sure you have decent drawings (Side View and Front view is a must, top view is a bonus), rib plans are always the best but in the case I had a fairly simple hull with enough information on the drawings to create it, of course go searching for the images of the real ship out the water if you can find any!
Step 2: Subdiv Mesh

Creating the subdiv mesh is always fun, in this case I hard a few hard chine lines to deal with so I was sure to mark them out, I should have added the keel in at this stage, it would have made for a better looking mesh but with higher poly count for no reason apart from a better looking mesh.

Step 3. Seperating mesh for smoothing

This step is really quite dependent on the type of hull you are creating, a wooden ship for instance will not need this, to preserve the hard chine when smoothing is applied, I separate the meshs in their smoothing groups so that when it goes to blender for mapping and smoothing, it wont smoothen out the areas near the bow and stern that have less than a 35° angle. the tradeoff with this method is you will have separated areas on the UV for something that is essentially joined.
Hope this helps!