what is the rank of ensign in the navy
Ensign (rank) In the United States Navy, the rank of ensign superseded passed midshipman in 1862. Ensign is the junior commissioned officer rank in the United States Navy, the United States Coast Guard, the National Oceanic and Atmospheric Administration Commissioned Officer Corps, and the PHS Commissioned Corps. This rank is also used in the U.S. Maritime Service and the U.S. Naval Sea Cadet Corps. Ensign ranks below lieutenant junior grade, and it is equivalent to a second lieutenant in the U.S. Army, the Marine Corps, and the Air Force.
Warrant officer (United States) Chief warrant officers in the Coast Guard may be found in command of larger small boat stations and patrol boats, as specialists and supervisors in other technical areas, and as special agents in the Coast Guard Investigative Service. They wear insignia essentially like that of their Navy counterparts, but with the USCG shield between the rank insignia and the specialty mark, as Coast Guard commissioned officers do with their rank insignia. Like their Navy counterparts, candidates for the rank of chief warrant officer must typically be serving in the chief petty officer grades (E-7 through E-9), however, the Coast Guard also permits selection of first class petty officers (E-6) who are chief petty officer selectees and who are in the top 50% on their advancement list to E-7. Like the Navy, the Coast Guard does not use the rank of warrant officer (WO-1). Although authorized in 1994, the Coast Guard does not currently use the CWO5 grade.[31]