The Helena Class

The USS Helena, The Flagship of the Great Black Fleet. It has 9x405mm/16in guns and two funnels. The most amazing feature was it's Tripod mast, which was the thing that easily changed it into a very noticeable warship. Here's a Picture ->

The USS Helena
The USS Helena was constructed after the Battle of Stonington Castle II and participated in the Battle of Stonington Castle III. She didn't receive a scratch during the battle but completely obliterated one of the castle tower's with it's 16in guns. And that's pretty much it for this guy's History.

The USS Trident
This ship was finished only about 15 days after The Imperial-Stonington War, so it hasn't participated in any battles yet.