Engines, Motors & Drives: Propulsion systems for marine vessels. There are several types of engines available for marine use. These can be inboard engines or outboard motors. They can be electric motors or internal combustion engines.

Electric Motors | Inboard Engines | Jet Drives | Outboard Motors

There are several types of engines available for marine use.  These can be inboard engines or outboard motors.  They can be electric motors or internal combustion engines.  Internal combustion engines are either gasoline (petrol) or diesel powered.  Gasoline engines can be either carbureted or fuel injected.

An inboard motor is an engine that is enclosed within the hull of the boat, connected to a propeller (prop) or a jet pump with an impeller.  This is sometimes called a stern drive or inboard / outboard drive.  An inboard drive with propeller propulsion will have a gearbox and a leg that has a drive shaft connected to the propeller.  The skeg at the bottom end of the leg also acts as a rudder when the engine is not running.  With a jet drive the pump with the impeller is connect to the engine and swivels to provide steering.

An outboard motor consists of a self-contained unit that includes engine, gearbox and propeller or jet drive, that is fastened to the outside of the transom.  As well as providing power, outboard motors provide steering control, as they pivot on their mountings and control the direction of thrust.  The skeg at the bottom end of the leg also acts as a rudder when the engine is not running.  Outboard motors can be easily removed for storage or repairs.

English Terminology: marine engines, engine, motors, motor, leg, skeg, rudder, gear box, propeller, jet pump, jet drive, electric, inboard, outboard, stern drive, carbureted, fuel injection, internal combustion

French Terminology: moteurs marins, moteurs, moteurs, moteur, de la jambe, dérive, le gouvernail, la boîte de vitesses, de l'hélice, la pompe à jet, de jet, électriques, intérieur, extérieur, moteur mixte, carburateur, injection de carburant, à combustion interne

German Terminology: Schiffsmotoren, Motor, Motoren, Motor-, Bein-, Skeg, Seitenruder, Getriebe, Propeller, Strahlpumpe, Jet-Antrieb, Elektro-, Innen-, Außenborder, Z-Antrieb, Vergaser, Einspritzung, Verbrennungsmotor

Spanish Terminology: motores marinos, motores, los motores, el motor, la pierna, talón, timón, caja de cambios, la hélice, la bomba de inyección, la propulsión a chorro, eléctrica, interior, motor fuera de borda, mixtos, con carburador, inyección de combustible, de combustión interna