The boat is a small ship. As a rule, boats are rowing boats, but there are also sailing boats. The boat can be equipped with an outboard motor. The main material for the manufacture of boats are light alloys (usually duralumin), wood, composite materials and polymers. Boats made from composite materials are commonly referred to as plastic boats. A special type of boats is inflatable. Currently, boats are used for recreation, fishing and transportation of goods from ship to shore where there are no berths, movement in settlements during floods and as a rescue vehicle.