It is an insignia for a sailor grade E-4 through grade E-9.
E standing for enlisted persons
The term "NAR" doesn't refer to a Navy ship - it's the standard Navy acronym for Naval Air Reserve.
There are no walls in the Navy, either on land or at sea - only Bulkheads.
The term pilot was first used as a naval term in the early 1500's, meaning the person who steers the ship, which is not (necessarily) the same person as the captain. In the mid 1800's the term pilot also included a person who steers a balloon, and in the early 1900's its meaning was expanded to include a person who flies an airplane.
The term Rihanna's Navy started in 2009. She was in the movie Battleship in 2009.
The term "Stern" is the Navy term for the aft (rear) section of any ship or submarine, generally referring to the rearmost portion of the vessel.
The full form of INS in the NAVY is "Indian Naval Ship" or "Indian Naval Submarine". It is a term used as a prefix before all active ships and submarines in the Indian NAVY.
The proper term is a Clinometer; the unofficial term is the "bubble".
In most military branches, a command is simply a unit which you are in charge of. For a ship's captain, his vessel would be his command.
That fellow is known as the "ship's carpenter" or in a dockyard as the "Shipwright"
Yes, the term "crow's nest" is the name given the to platform at the top of the main mast of a ship. In the early designs it was simply a barrel or a basket lashed to the tallest mast. Later it became a specially designed platform with protective railing. Sailors (people) climb to the crow's nest to keep a lookout while at sea because at that point of elevation one can see further.
Yes, the term "crow's nest" is the name given the to platform at the top of the main mast of a ship. In the early designs it was simply a barrel or a basket lashed to the tallest mast. Later it became a specially designed platform with protective railing. Sailors (people) climb to the crow's nest to keep a lookout while at sea because at that point of elevation one can see further.
The term is, "Passengers embark"