Marine propulsion

A sail is a tensile structure, which is made from fabric or other membrane materials, that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail-powered land vehicles. Sails may be made from a combination of woven materials—including canvas or polyester cloth, laminated membranes or bonded filaments, usually in a three- or four-sided shape.

type of internal combustion engine

right|thumb|Traditional wooden oars An oar is an implement used for water-borne propulsion. Oars have a flat blade at one end. Rowers grasp the oar at the other end.

room or platform from which a ship can be commanded

self-contained propulsion system for boats

thumb|alt=Raft paddle|A rafting paddle A paddle is a handheld tool with an elongated handle and a flat, widened end (the blade) used as a lever to apply force onto the bladed end. It most commonly describes a completely handheld tool used to propel a human-powered watercraft by pushing water in a direction opposite to the direction of travel (i.e. paddling). A paddle is different from an oar (which can be similar in shape and perform the same function via rowing) – an oar is attached to the watercraft via a fulcrum.

thumb|A view of pump-jets operating thumb|Two of four KaMeWa waterjets on the high-speed ferry Discovery thumb|Typical Personal water craft|jet ski pump jet

thumb|An airboat thumb|right|Airboating is a popular ecotourism attraction in the Florida [[Everglades]]

space where the propulsion machinery is installed aboard a vessel

propulsion system for vehicles

propulsion system for submarines which operates without access to atmospheric oxygen

pod underneath a ship, instead of a propeller and rudder

internal combustion engine

system for generating thrust for watercrafts on water

watercraft propelled by an electric drivetrain

type of marine propulsion system

type of marine propulsion system

thumb|upright=1.2|Impeller from a three-stage air compressor An impeller, or impellor, is a driven rotor used to increase the pressure and flow of a fluid. It is the opposite of a turbine, which extracts energy from, and reduces the pressure of, a flowing fluid.

marine propulsion system

two-turbine, one-shaft marine propulsion system

assembly that houses a gland seal

thumb|right|300px|Closeup of one of 's 3.3MW Azipod units

ship built in 1985

modification of the combined diesel and gas propulsion system for ships

type of marine propulsion system

ship type

type of marine propulsion system

propulsion system for marine vessels utilizing a nuclear powerplant

speed at which the wavelength of a vessel's bow wave is equal to the waterline length

two-compression-ignition-engine, one-drive shaft propulsion

MHD drive usually used to propel watercraft

The turbosail or French '''''' is a marine propulsion system using a sail-like vertical surface and a powered boundary layer control system to improve lift across a wide angle of attack. This allows the sail to power the boat in any direction simply by moving a single flap at the back of the sail, unlike conventional sails which have to be continually adjusted to react to changes in the relative wind.

Marine propeller with a non-rotating nozzle

Cylindrical, rotating sail

the space, or spaces, of a vessel where water is brought to a boil

type of marine propulsion system

type of marine propulsion and power system

right|thumb|300px|The outdrive unit of a boat with sterndrive A sterndrive or inboard/outboard drive (I/O) is a form of marine propulsion which combines inboard power with outboard drive. The engine sits just forward of the transom while the drive unit (outdrive or drive leg) lies outside the hull.

thumb|Jetboating on the Waiatoto River|Waitoto River in the West Coast region of [[New Zealand]] thumb|A rider on a Yamaha Motor Corporation|Yamaha Waverunner XL in a high-speed turn

thumb|300px|Sails made with synthetic fibers. Sailcloth is cloth used to make sails. It can be made of a variety of materials, including natural fibers such as flax, hemp, or cotton in various forms of sail canvas, and synthetic fibers such as nylon, polyester, aramids, and carbon fibers in various woven, spun, and molded textiles.

ship built in 2010

thumb|BMW Oracle Racing USA 17 (yacht)|USA 17 from the [[2010 America's Cup, with a rigid mainsail wingsail, and a conventional jib at the fore]] right|thumb|Forces on a wing (green = lift, red = drag).

steam engine that is used to power a ship or boat

type of marine propulsion system

SolidSail, sometimes referred to as Solid Sail or SolidSail Mast Factory (SMAF) in reference to the eponymous subsidiary, is a wind propulsion technology designed for large vessels, developed by Chantiers de l'Atlantique in Saint-Nazaire, France. This innovative system is based on rigid sails made of composite materials and a tilting gaff rigging, enabling hybrid or primary wind propulsion for commercial and cruise ships. It is also the name of the subsidiary created by Chantiers de l'Atlantique in 2023.

A propulsor is a mechanical device that gives propulsion. The word is commonly used in the marine vernacular, and implies a mechanical assembly that is more complicated than a propeller. The Kort nozzle, pump-jet and rim-driven thruster are examples.

ship

propeller-driven land yacht

Cargo ship operating practice

business manufacturing propulsion and steering systems for ships and offshore application