roll ▁Sim ms , ▁C SN . ▁ ▁Still ▁fitting ▁out , ▁she ▁took ▁no ▁part ▁in ▁the ▁Battle ▁of ▁Mobile ▁Bay ▁on ▁ 5 ▁August ▁ 1 8 6 4 . ▁She ▁helped ▁f end ▁off ▁attacks ▁on ▁Spanish ▁Fort , ▁Alabama ▁on ▁ 2 7 ▁March ▁ 1 8 6 5 , ▁supported ▁Confeder ate ▁commander ▁Rand all ▁L . ▁Gib son ▁until ▁driven ▁away ▁by ▁Federal ▁batter ies , ▁and ▁sh elled ▁Federal ▁troops ▁near ▁Fort ▁Bla k ely ▁on ▁ 2 ▁April ▁ 1 8 6 5 . ▁The ▁ships ▁retre ated ▁up ▁the ▁T omb ig be e ▁River ▁ 1 0 ▁days ▁later ▁when ▁Mobile ▁surrender ed . ▁She ▁was ▁one ▁of ▁the ▁vessels ▁formally ▁surrender ed ▁by ▁Com mod ore ▁Eb ene zer ▁F arr and , ▁C SN , ▁at ▁N anna ▁Hub ba , ▁Alabama ▁on ▁ 1 0 ▁May ▁ 1 8 6 5 . ▁ ▁Although ▁never ▁quite ▁finished , ▁she ▁had ▁been ▁heavily ▁arm ored ▁with ▁triple ▁ 2 - inch ▁pl ating ▁forward ▁and ▁around ▁her ▁pilot ▁house , ▁only ▁a ▁single ▁thick ness ▁a ft ▁and ▁there ▁had ▁been ▁some ▁doub ts ▁expressed ▁that ▁her ▁build ers ▁might ▁have ▁over est im ated ▁her ▁struct ural ▁strength . ▁R ear ▁Admir al ▁Henry ▁K . ▁Th atch er , ▁US N , ▁wrote ▁on ▁June ▁ 3 0 , ▁ 1 8 6 5 , ▁after ▁survey , ▁" She ▁was ▁h og ged ▁when ▁surrender ed ▁and ▁is