![]() This is because the transmission must be engaged in order for the boats direction to be changed. Inboards, you guessed it, have poor low speed maneuverability. You also have tighter turn ratios with an outboard. The outboard acts like a rudder, which is a flat piece hinged vertically near the stern of the boat for steering, giving you more control. Outboards have good low speed maneuverability due to the directional drag that the outboard causes. Slow speed maneuverability is important for having better control when docking or launching your boat. An outboard however, will need constant cleaning and upkeep if you want everything on your boat to continuously look like new. Therefore, not needing routine cleaning to continuing looking pristine. If you want to keep a clean looking boat, both options can work. An outboard motor or multiple motors would take up the space of the transom. If your boat has a swim deck you would probably prefer an inboard be able to utilize the entire space. The style and size of boat can change what aspects of the look of the boat are more important. In some boats the interior space is used for an engine compartment, and this can also be a bit of an eye soar. However, some people like to show the size and sometimes the amount of outboards motors they have with the motor hanging outside of the boat.Īn inboard motor keeps a sleek open look on the back of the boat. For some people this can play a big role in that decision.Īn outboard can look bulky on the back of boat. The look of the boat might be the last thing you think about when deciding which type of motor is right for you. ![]() The inboard option means less maintenance even though they cost more initially. Outboards last about 750 hours on average. You can get roughly 1,500 hours from an inboard before needing immediate maintenance. Inboard motors usually last longer than outboards. Straight inboards on the other hand require a much smaller hole under the waterline that are sealed with a shaft log. This is subject to deterioration and normal ware and tare that require this replacement. IO’s have a bellows gasket that is recommended to be replaced every two years. Inboards, IO’s especially, have consumable parts under the waterline that unless maintained correctly will sink your boat. This is because of the massive hole below the water line that connects to transmission of the outdrive. Also, inboard motors are more likely to sink compared to outboards. The increased cost is associated with the cost to replace the motor if a replacement is required. Boats with inboard motors will also come with a much higher insurance cost/deductible. Depending on the year, make, and model, parts may be hard to find as well as a dealer who is willing to work on them. The engine is typically mounted in a tight space making it more difficult to work on. ![]() Inboards are higher upfront cost and much more difficult to repair and replace. Outboards use less fuel because of their more efficient design and less weight. They are easier to winterize with some not needing this to be done at all. Since Mercury, Evinrude, Nissan, Honda, and Yamaha dominate the market parts are readily accessible and knowledgeable mechanics to work on them. Outboards are generally lower cost, lighter weight, achieve higher speeds and are easier to access and remove for maintenance. Outboard engines are designed specifically for boating, whereas inboard motors are usually just automobile engines that have been modified for marine use. ![]() So buckle up as we break down the pro’s and con’s of these commonly used boat propulsion systems. Each one of these choices comes with its advantages and disadvantages. Just like everything else in life, nothing is perfect. Most boats, such as sailboats, cruisers, and bowriders, can come with either option. There are two major types of motors, outboard and Inboard.
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