BOATERS BLOG
Choosing the right boat motor plays a major role in how your vessel performs, handles, and supports your time on the water. From outboard and inboard motors to stern drive and jet drive systems, each option offers its own advantages depending on your boating style, experience level, and favorite activities. Whether you enjoy cruising, fishing, watersports, or family days at the sandbar, understanding how each motor type works can help you make a more confident decision. The National Boat Owners Association, NBOA, is here to help boaters navigate these choices with practical guidance for safer, smarter, and more enjoyable boating.
Outboard Motor
An outboard motor is a dedicated marine engine mounted on the outside of the boat’s transom, which is how it got its name. This type of motor powers and steers the vessel from a single unit, meaning the entire engine turns to help direct the boat. Smaller outboard-powered boats may use a hand tiller for steering, while larger models are typically controlled with a steering wheel. This design offers several advantages for boaters, including lighter weight, strong fuel efficiency, and easier service access because the engine sits outside the hull. Outboards can also be tilted completely out of the water, which can help reduce corrosion and marine growth when the boat is docked or moored, especially in saltwater. Because outboards are outside the boat, they can also free up more interior space for seating, storage, and gear.
Inboard Motor
As one might guess, an inboard motor is mounted inside the boat’s hull, typically near the stern, and uses a drive shaft connected to a propeller beneath the boat to move the vessel through the water. Unlike an outboard motor, an inboard does not turn to steer the boat; instead, steering is controlled by a rudder positioned behind the propeller and operated by a steering wheel. This setup is commonly found on dedicated watersports tow boats and can provide a clean, uncluttered transom for boarding, lounging, and swim platform space. Inboard-powered boats may also offer benefits for watersports, especially when equipped with forward-facing propeller systems designed for activities such as wakesurfing. For many boaters, the inboard layout delivers strong performance while keeping the engine tucked inside the vessel for a streamlined look and more usable space at the stern.
Stern Drive Motor
A stern drive motor, also known as a sterndrive or inboard/outboard engine, combines features of both inboard and outboard motors. The engine is mounted inside the boat near the stern, like an inboard motor, and a steering wheel is used to maneuver the drive unit, like an outboard motor. This setup gives boaters the power associated with an inboard motor along with the maneuverability and trim control commonly found with outboards. Stern drives can also free up interior and transom space, create a cleaner-looking stern, improve control over the boat’s running angle, and support strong performance for activities such as cruising and watersports.
Jet Drive Motor
A jet drive motor uses water to propel and steer the vessel, making it different from traditional propulsion systems that rely on an exposed propeller. Water is drawn through an intake on the bottom of the boat and forced rapidly through the jet drive at the transom. As the water exits the jet unit, it creates thrust that moves the vessel forward, while changing the direction of that water flow allows the operator to steer. This design can be especially beneficial for shallow-water boating, watersports, and areas where swimmer safety is a priority because there is no exposed propeller beneath the boat. Operators should keep the intake clear of debris, weeds, sand, or other obstructions to help maintain performance.
The best boat motor depends on how you plan to use your boat, where you boat most often, and what features matter most to you. By understanding the benefits of outboard, inboard, stern drive, and jet drive motors, you can choose a vessel that fits your boating lifestyle. No matter what type of motor your boat is equipped with, it is also essential to review your boat insurance needs before hitting the water.