Which engine-rudder configuration correctly describes clearing a pier when port side to against wind or current?

Which engine-rudder configuration correctly describes clearing a pier when port side to against wind or current?

• A. Ahead on starboard engine and astern on port engine with full left rudder
• B. Ahead on port engine and astern on starboard engine with full right rudder
• C. Ahead on starboard engine and ahead on port engine with full left rudder
• D. Astern on both engines with full left rudder

Answer: (A)

When you’re clearing a pier with the boat with the port side toward the dock, the goal is to create a turning moment that swings the stern away from the pier while the bow stays directed toward open water. Using differential thrust—forward on the engine farthest from the pier (on the starboard side) and reverse on the engine closest to the pier (on the port side)—produces that yaw. The opposing thrusts push one side of the stern backward and the other forward, starting a pivot that moves the boat away from the dock. Setting the rudder to full left then steers the bow toward the open water, helping the vessel clear the pier as soon as movement begins. This combination is preferred because it generates the needed rotation quickly and gives you good control as you start to back away. Other engine/rudder setups either fail to create enough yaw to shed from the dock or tend to push the boat closer to the pier, making a safe clearance harder to achieve.

When you’re clearing a pier with the boat with the port side toward the dock, the goal is to create a turning moment that swings the stern away from the pier while the bow stays directed toward open water. Using differential thrust—forward on the engine farthest from the pier (on the starboard side) and reverse on the engine closest to the pier (on the port side)—produces that yaw. The opposing thrusts push one side of the stern backward and the other forward, starting a pivot that moves the boat away from the dock. Setting the rudder to full left then steers the bow toward the open water, helping the vessel clear the pier as soon as movement begins. This combination is preferred because it generates the needed rotation quickly and gives you good control as you start to back away. Other engine/rudder setups either fail to create enough yaw to shed from the dock or tend to push the boat closer to the pier, making a safe clearance harder to achieve.