User blog comment:FlammeumDraco333/Tales From the Not so Blocky Seas/@comment-27820070-20150627045457/@comment-27820070-20150627051258

The Admiral-Class unlocks at I think level 45 or 48. I couldn't check because well...the servers are down.

What's more interesting is that I can actually get the King George from the Queen Elizabeth (although I would end up going for a ship that actually has speed.)

(And yes, my Queen Elizabeth is now named the HMS Warspite, because reasons.)

Addendum: the guns aren't bad, but they certainly lack range. 305 range is all you are going to get, and you would have to stick with 2370 damage per shot.