Can there possibly be two officers of the same rank serving on the same vessel? And if so who is in charge? (I.e two lieutenant junior grade officers on the same ship)

Question

Can there possibly be two officers of the same rank serving on the same vessel? And if so who is in charge? (I.e two lieutenant junior grade officers on the same ship)

In: Other

Answer 1

Outside of a naval vessel, on aircraft you can have an officer of a lesser rank be the commander over others with higher rank. This happens frequently in multi-crew aircraft, especially when an officer has done a non-flying assignment and comes back with a higher rank, but not to a command assignment in the aircraft.