5/2/2023 0 Comments Outboard vs inboardOutboard and inboard engines are two very different types of propulsion systems for your boat. Outboard vs Inboard: How They Handle Differently A summary of Outboard vs Inboard engines.FAQs in Relation to Outboard vs Inboard Boat.Outboard vs inboard: Costs of Maintenance.What are sterndrive (or inboard/outboard) engines?.Different Inboard Engine Configurations.Outboard vs Inboard: How They Handle Differently.In conclusion Why worry about engine type?.Inboard/outboard hybrid motors – sterndrives.Key differences between inboard and outboard motors. You may be on the market for a new boat from a dealer, or maybe you have scored a great deal on a used craft. Well one of the most important considerations when buying a boat is a boat’s engine. The type/specification of a boat’s marine motor is, to a very large extent, a key determinant in the performance of a boat. The motor will not only affect the speeds you will be able to attain out on the water but it will also affect fuel consumption, stability and handling. The choice of motor will often be determined by the main use of your vessel. The first question you should ask yourself is which motor is better for the intended purpose of my boat? Specific motor types are better fits for certain activities than others. Is your boat going to be used for water-sports, such as paragliding or waterskiing. Or, is the main purpose of your vessel leisurely cruises or ocean-going outings? Perhaps you need a boat for hunting or angling in shallow waters. One of the first decisions you will need to make, when it comes to your boat’s engine, is whether you will have an inboard or outboard motor, or perhaps you may need a combination of both (more on this later). So, before you can decide on the type of engine you need you must understand the difference between an inboard and outboard motor. What is an inboard motor?Īn inboard motor, often just referred to as an inboard or sometimes called an inboard engine, is a type of marine engine which is housed specifically within the hull of a boat. This type of marine propulsion unit usually involves a gasoline, electric or diesel engine that drives a propulsion screw via a driveshaft. Inboard engines bear some similarities with automobile engines in structure and function, and some also share parts with them – this type of motor is a subclass of the marine engine called a marine automobile engine. Like an automobile engine inboards rely on combustion to drive pistons which turn a driveshaft that produces the spinning motion that helps to propel the vessel. The rotating motion of the drive shaft is transmitted to the gearbox which in turn drives the boat’s propeller that is situated underneath the boat. With inboard engines, water is pumped from outside as part of the engine coolant system to prevent engine overheating and this water is then ejected via the exhaust pipe. The injectection of cooling water into the exhaust pipe, has the added advantage of cooling the exhaust and muffling engine noise.ĭ-Drive inboard motors, short for Direct Drive motors, refers to an engine that is mounted centrally inside the boat.
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