inboards
Internal marine motors
Inboards are motors mounted inside a boat's hull rather than hanging off the stern.
The term distinguishes these engines from outboard motors, which attach externally.
As an adjective, inboard describes position closer to a vessel's centerline or a vehicle's body: the inboard engine, inboard brakes.
The opposite is outboard.
Outer covering or frame
- propellerRotating blades creating thrust
- sternStrict or ship's aft
- bowRespectful forward inclination
- deckShip's flat surface
transom · watercraft · jet boat · ski boat · runabout · speedboat · fiberglass · bilge
Rate of mechanical work
- torqueRotational force measurement
- thrustForceful forward motion
- accelerationRate velocity changes
- top speedMaximum achievable velocity
fuel efficiency · diesel · gasoline · four-cylinder · six-cylinder · twin engines · single engine · idle
Rod transmitting rotational power
- transmissionSending of information
- gearboxEnclosed system of cogs
- clutchMechanism linking engine to gearbox
- direct driveTransmission without intermediate gears
driveshaft · coupling · reduction gear · strut · propeller · alignment · torque · gear ratio
Watercraft propulsion system
- cylindersCircular-based solid shapes
- pistonsForce-transferring engine cylinders
- crankshaftRotating engine shaft
- camshaftLobed rod operating valves
combustion · carburetor · fuel injection · exhaust · manifold · cooling system · oil pan · gasket
hull
Outer covering or frame
deck · transom · watercraft · jet boat · ski boat · runabout · speedboat · fiberglass · bilge · throttle
horsepower
Rate of mechanical work
- torqueRotational force measurement
- thrustForceful forward motion
- accelerationRate velocity changes
top speed · fuel efficiency · diesel · gasoline · four-cylinder · six-cylinder · twin engines · single engine · idle · full throttle
propeller shaft
Rod transmitting rotational power
- transmissionSending of information
- gearboxEnclosed system of cogs
- clutchMechanism linking engine to gearbox
direct drive · driveshaft · coupling · reduction gear · strut · propeller · alignment · torque · gear ratio · reverse
marine engine
Watercraft propulsion system
- cylindersCircular-based solid shapes
- pistonsForce-transferring engine cylinders
- crankshaftRotating engine shaft
camshaft · combustion · carburetor · fuel injection · exhaust · manifold · cooling system · oil pan · gasket · spark plugs
- electric boatselectric motors, outboards, lithium batteries, battery packs, chargers