X is a fictional ship which was originally called Wicked Wench.It was build by by Lord Becket of East India Company and Y who was working for the company  was assigned the captaincy of the ship.Y went against the orders of Lord Beckett and the latter ordered to bring down the ship.
But however with the help of a few other characters in the fictional work, Y manage to bring back the ship asX, also making it the fastest ship in the seven seas.

Id the ship X or Y

X-Black Pearl
Y-Capt Jack Sparrow
(Both tfrom the pirates of Caribbean  series)