I bought the sumptuous looking stand-alone game, Dreadfleet, when it was first released but have been too taken with 40K, Warhammer and, in particular, LOTR, to do more than open the box.
However, as a break from endless Elves, Dwarves and Orcs, I have started three of the ships from the set of ten, the easiest first.
This is The Shadewraith, captained by the mutineer, Vengheist.
When he and this turncoat crew return to the mortal plane, both they and the ship have rotted away.
The ship is held aloft, from the waves, by the spirits of the crew.
(I don't write this stuff, I merely paraphrase!)
A couple of points if you are building one (unlikely as the game is six years old and well out of print)
1. The sails, as shown here, are wrongly placed. They should be angled away from the bow on the right hand side, not the left, as here.
2. It might be easier to glue the deck to one side, then insert the masts with the other hull going on last. It's tricky to locate the masts into the receiving holes, below decks, when you have to peer through the skeleton of the hull.
The last shot shows it on the gorgeous cloth map that they provide