What is a common property of most boat propellers when viewed from the aft?

When observing most boat propellers from the aft (the rear of the boat), they typically rotate in a right-handed direction. This means that as the propeller spins, the leading edge of the propeller blades will move to the right. This right-handed rotation is the most common configuration for small to medium-sized recreational boats, as it creates a propulsive force that effectively moves the boat forward.

Understanding propeller rotation is essential for boat operation and maneuvering, especially when considering how a boat responds to engine thrust and how it may handle in different conditions. Right-handed propellers are aligned with most standard marine engine setups, which influences not just performance but also how a boat will track in the water. While some vessels may use left-handed props or bi-directional systems, these are the exceptions rather than the rule in typical boating environments.