- deck ers , ▁ 9 1 ▁guns ▁ ▁Bul w ark ▁ 9 1 ▁(- ) ▁– ▁susp ended ▁almost ▁complete ▁ 1 8 6 1 , ▁broken ▁up ▁ 1 8 7 3 ▁ ▁Rob ust ▁ 9 1 ▁(- ) ▁– ▁laid ▁down ▁as ▁Dun can ▁class , ▁susp ended ▁almost ▁complete ▁ 1 8 6 1 , ▁broken ▁up ▁ 1 8 7 2 ▁ ▁Rep ulse ▁– ▁ordered ▁to ▁be ▁converted ▁to ▁iron cl ad ▁ 1 8 6 6 ▁ ▁Ze alous ▁– ▁ordered ▁to ▁be ▁converted ▁to ▁iron cl ad ▁ 1 8 6 4 ▁ ▁Royal ▁Alfred ▁– ▁ordered ▁to ▁be ▁converted ▁to ▁iron cl ad ▁ 1 8 6 1 ▁ ▁Royal ▁Oak ▁– ▁ordered ▁to ▁be ▁converted ▁to ▁ ▁as ▁half - s ister ▁of ▁Prince ▁Cons ort ▁class ▁ 1 8 6 1 ▁ ▁Tri umph ▁– ▁ordered ▁to ▁be ▁converted ▁to ▁▁ 1 8 6 1 ▁and ▁completed ▁as ▁Prince ▁Cons ort ▁ ▁Ocean ▁– ▁ordered ▁to ▁be ▁converted ▁to ▁▁ 1 8 6 1 ▁ ▁C aled onia ▁– ▁ordered ▁to ▁be ▁converted ▁to ▁▁ 1 8 6 1 ▁ ▁Bla ke ▁ ▁– ▁ordered ▁but ▁never ▁laid ▁down . ▁ ▁Can cel led ▁ 1 8 6 3 . ▁ ▁Kent ▁ ▁– ▁ordered ▁but ▁never ▁laid ▁down . ▁ ▁Can cel led ▁ 1 8 6 3 . ▁ ▁Pitt ▁ ▁– ▁ordered ▁but ▁never ▁laid ▁down . ▁ ▁Can cel led ▁ 1 8 6 3 .