Keywords: Four Knox Frigates and USS Towers.jpg Five ships of the aircraft carrier USS MIDWAY CV 41 battle group steam alongside one another The ships are from left to right the frigates USS KIRK FF 1087 USS FRANCIS HAMMOND FF 1067 USS LOCKWOOD FF 1064 and USS KNOX FF 1052 and the guided missile destroyer USS TOWERS DDG 9 1987-10-01 PD-USGov-Military-Navy USS Knox FF-1052 USS Lockwood FF-1064 ship 1968 USS Francis Hammond FF-1067 ship 1968 USS Kirk FF-1087 ship 1971 USS Towers DDG-9 Groups of naval ships of the United States |