50 knots easy.
She can move at freeway speeds and no other capital ship in the world can keep up with her.
From looking up her stats the flight deck is about the size of some mid-town Manhattan city blocks. Don't know how high above the water line the deck is but the image that comes to my mind (NYC escapee) is;
A whole friggin' block of NYC buildings passing me in the left lane of the NY Thruway!
And being swept away to hell and gone by the bow wave!
That ship leaves a wake you can see the next morning.