Which maneuver is described as the fastest method not meant for a single-prop vessel, used when two-thirds of the way around, with engine configuration specified?

• A. Anderson Turn
• B. Destroyer Turn
• C. Barrel Roll
• D. Shallow Turn

Answer: (A)

When a vessel has two propellers, you can achieve a rapid change in heading by applying opposite thrust on the two engines, creating a strong yaw moment with minimal forward travel. This is the idea behind the Anderson Turn. It’s designed to turn the ship around quickly by using a specific engine configuration that drives one propeller forward and the other in reverse (as specified for the maneuver), so the hull pivots rather than simply pushes forward. That ability to pivot fast is what makes it the fastest method for reversing course on a two-propeller vessel, especially when you’re already two-thirds of the way through the turn and need to complete the change promptly.

This method isn’t suited for a single-propeller vessel because you don’t have a second propeller to produce the necessary opposite thrust to generate the yaw without driving the ship forward or losing that quick pivot capability. The other options either involve different turning techniques or are not designed for rapid 180-degree reversals: some are slower, some are not applicable to ships at all, and one is a maneuver associated with aircraft.