Event horizon class battleship

Description
The event horizon class were designed to repel invaders from the land of New Rathnir. They are absolutely massive, with the ability to repel any type of ship, and outrun any. It has over 50 guns, and it has an absolute top speed of 22 knots and 15 knots into the wind. It can combat ships such as the Sylene-Class Frigates, the Storm-Class Frigate, the Sterling-Class Fleet Auxiliary and the Aezenfjord-Class Corvette-Escort with ease. Although it has not been built, one is planned. The only downside to these ships are their large compliment, housing over 35 crew members. It is also a relatively simple ship, without the usual complicated rigging. In the image on the right, The first sail shows the flag of astrova and the second shows the black hole flag. These ships are the pinnacle of navy tech, and are some of the most powerful tools of the Astrovan empire.

Lore
The battleship only exists in prototype form but it is still a potent weapon. If built, it would require imense resources, but it would also have the advantage of being a terror weapon, as GirthyChocolate described.

"The sole reason this ship exists is to paralyze people into fear. Fear is the most effective weapon, one that has been around since the start of time. But in order for fear to work, there needs to be a legitimate threat. This ship is exactly that. You can't outrun it, and you can't outgun it. Best not go near it then.

The battleships were originally named the supernova class, but the name was changed to "event horizon" since it is a reference to the part of a black hole where you can't escape, and once you are past it, you are destroyed. This ship was built around it's name, since it carries 52 guns and has a top speed of 22 knots.