Choosing The Right Engine
Choosing the engine (or propulsion system) for yourboat is very important. Both the weight and thehorsepower will have a major impact on the performanceof your boat. If you have a boat that’s underpowered, the engine will work twice as hard, giving you poorperformance. Now, we will take a look at the motors availablefor boats and vesselsAn outboard motor is very popular and very useful onsmall boats. These motors are very light, powerful,and extremely quiet. Normally mounted on the transomof a boat, there are boats available that offer a motor well or even a bracket to mount the motor to.The entire motor will swivel about, providing easysteering as the turning propeller pushes the sternabout. Outboard motors come in many different sizesand the horsepower can use different types of fuel.These motors are also known as I/O engines, and normally heavier than outboard motors. Consistingof an engine mounted inboard and a lower unit attached to the transom, these motors offer powerand versitility. You can also tilt the motor up and down to help provide boat trim while you cruise.
On boats that are over 26 feet in length, these motors are very popular.Similiar to the stern drivemotor, the inboard motor is mounted inside the boattowards the center, giving you good weight proportionInboards connect directly to the transmission, thenon through the hull of the boat. Then, the shaft is attached to a propeller which will turn and propel the boat. The shaft is fixed and doesn’t swivel around. Therefore, a rudder is mounted behind the shaft and propeller to help deflect the flow of water which provides your steering direction.Jet drive propulsion systems have a big advantage -no propeller to cause damage or injury to those inthe water, including marine life. Normally, they are inboard engines that will take in water that flows through a pump, powered by an impeller.Then, the water is discharged at a very high pressurethrough a nozzle that will propel the boat. To provide steering for the boat, the nozzle will swivel.
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