what is the equivalent of a colonel in the navy
Colonel (United States) In the United States Army, Marine Corps, and Air Force, colonel /ˈkɜːrrnəl/ is the most senior field grade military officer rank, immediately above the rank of lieutenant colonel and immediately below the rank of brigadier general. It is equivalent to the naval rank of captain in the other uniformed services.[n 1] The pay grade for colonel is O-6.
Chief petty officer (United States) Chief Petty Officer (CPO) is the seventh enlisted rate (E-7) in the United States Navy and U.S. Coast Guard, just above petty officer first class and below senior chief petty officer. The rate of chief petty officer is that of a senior non-commissioned officer, and was established on 1 April 1893 for the United States Navy.[1] The United States Congress first authorized the Coast Guard to use the promotion to chief petty officer on 18 May 1920.[2] Chief petty officer is also the final cadet rate in the U.S. Naval Sea Cadet Corps.