What section of the vessel is responsible for propulsion?

The propulsion of a vessel is primarily achieved through the propeller. The propeller works by rotating and creating thrust that propels the vessel forward or backward through the water. This action is crucial for maneuverability and speed on the water.

In contrast, other components such as the hull, gunwale, and intake have different roles. The hull is the main body of the boat that provides buoyancy and structural integrity, while the gunwale is the upper edge of the side of the hull which contributes to the vessel's safety but does not assist in propulsion. The intake typically refers to parts of the engine system that draw in water or air needed for operation, which also does not directly contribute to the propulsion of the vessel. Understanding the specific function of the propeller helps clarify its essential role in the overall operation and movement of the vessel.