Outboards & Inboards
Use the drop down menu under Engines Drives Controls to select information.
An inboard motor is an engine enclosed within the hull of the boat. An inboard motor can be connected by a driveshaft to a propeller or by a combined unit known as a stern drive.
Many marine engines are derived from automotive and truck engines. An inboard engine is selected by horsepower rating and fuel type, diesel is usually specified by the professional sector.
An outboard motor is a self-contained unit that includes engine, gearbox and propeller. Outboards are designed to allow multiple engines to be bolted to the transom of a boat.
As well as providing propulsion an outboard motor provides very precise steering. Outboards are designed to pivot and rapidly change the direction of propeller thrust.
Under Powered & Over Powered Engines
Using an engine that is too small for a particular craft is known as "under powering". This often results in a boat that is incapable of performing in the role for which it was acquired.
Using an engine that is too large for a particular craft is known as "over powering". Over powering can lead to a boat that is difficult to control and potentially dangerous.
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