What term is used to describe the line that runs from the bow to the stern of a canoe?

The term that describes the line running from the bow to the stern of a canoe is known as the keel. The keel is a structural component along the bottom of the canoe that helps with stability and tracking through the water. It provides a backbone to the vessel, allowing it to glide smoothly in a straight direction.

This feature is crucial for maintaining the canoe's balance and performance, especially in various water conditions. The keel contributes to reducing the amount of side-to-side motion that might occur from waves or currents, thereby enhancing the paddler's control.

In comparison, the painter is a rope attached to the bow of the canoe used for tying or securing the canoe. The rocker refers to the curvature of the canoe from bow to stern, affecting its maneuverability. A thwart is a crosswise support or bench in the canoe that provides structural integrity and seats for paddlers, but does not define the line from bow to stern.