HMS Agincourt, launched in She was an armoured frigate, clearly very transitional as far as technology is concerned. She wound up as a coal hulk and was sadly scrapped in At least the world still has HMS Warrior!
HMS Warrior is a naval icon - the first ironclad, propeller-and-sail driven warship. When she was built she was the greatest warship in the world, impervious to the firepower of all other warships. She revolutionized naval warfare, was the ultimate.