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2. Outboard motor - Wikipedia

   en.wikipedia.org/wiki/Outboard_motor

   An outboard motor is a propulsion system for boats, consisting of a self-contained unit that includes engine, gearbox and propeller or jet drive, designed to be affixed to the outside of the transom. They are the most common motorised method of propelling small watercraft.

3. Marine propulsion - Wikipedia

   en.wikipedia.org/wiki/Marine_propulsion

   The purpose of sails is to use wind energy to propel the vessel, sled, board, vehicle or rotor. Depending on the angle of your sail it will be the difference in direction of where your boat is heading and where the wind is going. [31] Dacron was used a lot as a material for sails because of its strong, durable, and easy to maintain.

4. Self-steering gear - Wikipedia

   en.wikipedia.org/wiki/Self-steering_gear

   The increased low wind capabilities of optimized, modern devices enable downwind steering down to 1.3 m/s apparent wind and 1.5 kn of boat speed [8] [9] – properties that make an electronic steering device nearly redundant and enable crossing the doldrums under wind vane self-steering. An increasing number of long distance regatta sailors are ...

5. Gray Marine Motor Company - Wikipedia

   en.wikipedia.org/wiki/Gray_Marine_Motor_Company

   Gray Marine Motor Company was a U.S. manufacturer of marine engines between 1910 and 1967. These ranged from one to six cylinders in both gas and later diesel layouts, which were used in pleasure boats, work boats, and military craft. Gray was based in Detroit. Many fishing boats, lobsterboats, tugs and pleasure craft used Gray engines.

6. Wind-assisted propulsion - Wikipedia

   en.wikipedia.org/wiki/Wind-assisted_propulsion

   Wind-assisted propulsion is the practice of decreasing the fuel consumption of a merchant vessel through the use of sails or some other wind capture device. Sails used to be the primary means of propelling ships , but with the advent of the steam engine and the diesel engine , sails came to be used for recreational sailing only.

7. Wind-powered vehicle - Wikipedia

   en.wikipedia.org/wiki/Wind-powered_vehicle

   Wind-powered vehicles derive their power from sails, kites or rotors and ride on wheels—which may be linked to a wind-powered rotor—or runners. Whether powered by sail, kite or rotor, these vehicles share a common trait: As the vehicle increases in speed, the advancing airfoil encounters an increasing apparent wind at an angle of attack ...

8. Wind transducer - Wikipedia

   en.wikipedia.org/wiki/Wind_transducer

   A wind transducer is a device used by sailors to receive a real-time measurement of wind speed and direction. [1] [2] A wind transducer is usually mounted on the masthead of a sailing boat and is occasionally used by power boats too. The wind speed and direction measurements are more critical to sailing boats than to power boats.

9. Motorboat - Wikipedia

   en.wikipedia.org/wiki/Motorboat

   A motorboat with an outboard motor. A motorboat or powerboat is a boat that is exclusively powered by an engine; faster examples may be called "speedboats".. Some motorboats are fitted with inboard engines, others have an outboard motor installed on the rear, containing the internal combustion engine, the gearbox and the propeller in one portable unit.