Chief Officer (Старший помощник) / Officer on watch (OOW) (Вахтенный помощник капитана)

Officer in charge of a navigational watch on ships of 500 gross tonnage or more, Officer on watch (OOW), Third Officer

4th Officer, Junior officer, Officer in charge of a navigational watch on ships of 500 gross tonnage or more, Officer on watch (OOW), Third Officer

Officer on watch (OOW)