On larger yachts, sailor is a principal crew member. While the captain is in charge of the navigation of the boat, the sailor does all the physical work. He cleans the deck, makes minor repairs, maintains the boat in good condition, helps with the docking, fills the fuel, and besides that he also helps the captain with the navigation and carrying out his orders. He is also responsible for the appearance and good functioning of the boat. When there is no security guard on board, sailor is responsible one, even though the whole crew takes care of the safety of the guests. If you have any kind of problem with your yacht, you can turn to the sailor and he will help you.