This is a new set and is based on the sailing ships as well as those converted to Steam from 1750 through the napoleonic wars up to the time of the HMS Warrior. There are so far 4 sets of rules for these.
This is the first one and covers all the major sailing ships of the Royal Navy from 1750 onwards. It doesn't contain any steam converted ships as they are in Vol 3. This does cover all the main ships from 1st class 130 gun ships down to 50 gun ships and some frigates.