Parmandur
Book-Friend
In my experience with nautical campaigns and rule sets, the vast majority of campaigns seem to assume technology from the 17th or even 18th century is available.
I would guess that the number of campaigns restricted to longships and cogs is significantly less than the number restricted to carracks and caravals, and which is in turn less than the number with galleons, and which is in turn probably not that different or even less than the number that assumes ships similar to what they see in 'Pirates of the Caribbean' or other pirate moves where the sailing technology is from the age of criminal piracy - late 17th and early 18th century.
For example, I would suspect almost every nautical game assumes the existence of a 'crow's nest', despite the very late date of the crow's nest being invented and the fact it would or should never appear in a 'medieval' themed game.
See also, Ghosts of Saltmarsh.