Atlantic Ocean | Pacific Ocean | Indian Ocean | Arctic Ocean | Ocean Colour Scene | marine (ocean) | Volvo Ocean Race | Ocean's Twelve | Ocean's Thirteen | Marine (ocean) | Ocean County | Ocean County, New Jersey | Billy Ocean | 2004 Indian Ocean earthquake and tsunami | Frank Ocean | Southern Ocean | Ocean City, Maryland | Ocean Hill | ocean | List of islands in the Indian Ocean | Ocean Grove, New Jersey | Ocean Township | Pacific Ocean Park | Ocean Park | Ocean Island | Tethys Ocean | Star Ocean: Till the End of Time | Pacific ocean | Ocean University of China | Ocean Software |
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.
The 1975 ship reclassification changed the Ocean Escorts (DE/DEG) to Frigates (FF/FFG) to be in line with other nations' classifications.