Inboard motors are engines installed inside a boat's hull, typically used for propulsion. They are commonly found in larger vessels, such as yachts and fishing boats, where they provide reliable power and stability. These motors are connected to a propeller through a drive shaft, allowing for efficient movement through water. Unlike outboard motors, which are mounted externally, inboard motors offer advantages like better weight distribution and reduced noise levels. They are often more powerful and can be easier to maintain, making them a popular choice for serious boaters and those who require robust performance on the water.