Klingon Cruiser

what class a space ship is this?

It is a Klingon ship it look similer to the black Klingon cruisers but its green

It’s of a type known as ‘Hollywood Fiction’, which is worse than normal fiction because it’s not even self consistent ….

PS if you post to a more appropriate forum you might get a more appropriate answer

K’tinga Klingon Battle Cruiser