   {|    |} knox-class frigates were united states navy warships, originally laid down as ocean escorts (formerly called destroyer escorts), but were all redesignated as frigates on 30 june 1975 in the usn 1975 ship reclassification and their hull designation changed from de to ff. a sub-class of the knox class was built, commonly referred to as the hewes class. the primary differences were slightly different arrangement of the "officer's country" staterooms with additional staterooms in the 01 level instead of the open deck b
Cold_War_frigates_and_destroyer_escorts_of_the_United_States Frigate_classes Knox-class_frigates Vietnam_War_frigates_and_destroyer_escorts_of_the_United_States