Poseidon's Pirate

There is a pirate ship that is said to sail the Atlantic, from England to the Caribbean. A Man o' War class ship that was 70 meters long had 150 guns-60 broadside canons on each side, 10 chase canons at the bow and 15 at the stern. It sailed at a speed that should be impossible for the size of the vessel. At its helm was Captian Perseus Jackson.

(set in the late 1600s to mid 1700s)
(Percy is a feared pirate Captian.)